Here is the entire listing of the code from the Standard Month Legal template I created.

First - here is the contents of the Metadata.xml file:

<Metadata xmlns="http://schemas.microsoft.com/2005/xcal" Version="1.0.0">

<Name>Standard Month Legal</Name>

<TimeUnit>Month</TimeUnit>

<PageSizeSelectionIndex>Legal</PageSizeSelectionIndex>

<PageHeight>14in</PageHeight>

<PageWidth>8.5in</PageWidth>

<PageOrientationSelectionIndex>Portrait</PageOrientationSelectionIndex>

<PageRow>1</PageRow>

<PageColumn>1</PageColumn>

<Thumbnail>DefaultPreview.gif</Thumbnail>

<Tasks>true</Tasks>

<Appointments>true</Appointments>

<SideBySide>false</SideBySide>

<PageCount>1</PageCount>                

<TemplateId>135</TemplateId>

<CompanyId>1</CompanyId>

</Metadata>

And then here is the listing of the entire Content.xml file:

<?xml version="1.0" encoding="utf-8"?>

<!-- Copyright (c) 2007, Microsoft Corporation. All rights reserved. -->

<!-- Standard Month Legal -->

<Template xmlns="http://schemas.microsoft.com/2005/xcal" Version="1.0.0">

  <Display>

    <Page RowSetting="0.25in,Auto,0.08in,*,0.4in"

          ColumnSetting="0.25in,*,0.25in" Style="StandardText">

      <!-- Background -->

      <Rectangle Row="0" Column="0" RowSpan="5" ColumnSpan="3"

                 Style="PageBackground"/>

      <!--Week Header-->

      <Grid Row="1" Column="1" RowSetting="Auto"

            ColumnSetting="*,1.3in,1.3in,1.3in" Style="Header"

            Padding=".08in" Background="Black">

        <!--Month Title-->

        <CalendarText Row="0" Column="0"

                      Text="#[@TemplateDate_MonthNameYearNumber]"

                      HorizontalAlignment="Left" FontSize="30pt"

                      FontWeight="Bold" Foreground="Yellow"/>

        <!--Banners-->

        <MonthWeekDayCalendar Row="0" Column="1" Height="1.1in"

                              Width="1.25in" VerticalAlignment="Center"

                              HorizontalAlignment="Center"

                              Style="BannerControl">

          <MonthFormat DateOffset="-1">

            <DockPanel>

              <CalendarText Orientation="Top"

                            Text="#[@TemplateDate_BannerMonthNameYear]"

                            Height="0.19in" FontSize="8pt"

                            Style="BannerTitle"/>

              <WeekHeader Orientation="Top" Height="0.15in" FontSize="7pt"

                          Format="d" Style="BannerWeekHeader"/>

              <StandardGrid Orientation="Fill" NumColumns="1" NumRows="6"

                            Style="BannerBody" />

            </DockPanel>

          </MonthFormat>

          <WeekFormat>

            <DockPanel>

              <CalendarText Orientation="Left" Width="0.15in"

                            Text="#[@TemplateDate_WeekNumber]"

                            FontSize="5pt" Style="BannerText"

                            HorizontalAlignment="Left" Margin="1,0,0,0">

                <ConditionalFormat Condition="ShowWeekNumber eq 'false'"

                                   Visibility="Collapsed"/>

              </CalendarText>

              <StandardGrid Orientation="Fill" NumRows="1" NumColumns="7" />

            </DockPanel>

          </WeekFormat>

          <DayFormat>

            <Banner Text="#[%d]" FontSize="7pt" Style="BannerText">

              <ConditionalFormat Condition="OutsideMonthDays eq 'true'"

                                 Visibility="Collapsed"/>

              <ConditionalFormat Condition="DayOfWeek eq 'sun'"

                                 Foreground="style!WeekendColor"

                                 ForegroundHighlight="style!WeekendColor"/>

              <ConditionalFormat Condition="DayOfWeek eq 'sat'"

                                 Foreground="style!WeekendColor"

                                 ForegroundHighlight="style!WeekendColor"/>

            </Banner>

          </DayFormat>

        </MonthWeekDayCalendar>

        <MonthWeekDayCalendar Row="0" Column="2" Height="1.1in"

                              Width="1.25in" VerticalAlignment="Center"

                              HorizontalAlignment="Center"

                              Style="BannerControl">

          <MonthFormat DateOffset="1">

            <DockPanel>

              <CalendarText Orientation="Top"

                            Text="#[@TemplateDate_BannerMonthNameYear]"

                            Height="0.19in" FontSize="8pt"

                            Style="BannerTitle"/>

              <WeekHeader Orientation="Top" Height="0.15in" FontSize="7pt"

                          Format="d" Style="BannerWeekHeader"/>

              <StandardGrid Orientation="Fill" NumColumns="1" NumRows="6"

                            Style="BannerBody" />

            </DockPanel>

          </MonthFormat>

          <WeekFormat>

            <DockPanel>

              <CalendarText Orientation="Left" Width="0.15in"

                            Text="#[@TemplateDate_WeekNumber]"

                            FontSize="5pt" Style="BannerText"

                            HorizontalAlignment="Left" Margin="1,0,0,0">

                <ConditionalFormat Condition="ShowWeekNumber eq 'false'"

                                   Visibility="Collapsed"/>

              </CalendarText>

              <StandardGrid Orientation="Fill" NumRows="1" NumColumns="7" />

            </DockPanel>

          </WeekFormat>

          <DayFormat>

            <Banner Text="#[%d]" FontSize="7pt" Style="BannerText">

              <ConditionalFormat Condition="OutsideMonthDays eq 'true'"

                                 Visibility="Collapsed"/>

              <ConditionalFormat Condition="DayOfWeek eq 'sun'"

                                 Foreground="style!WeekendColor"

                                 ForegroundHighlight="style!WeekendColor"/>

              <ConditionalFormat Condition="DayOfWeek eq 'sat'"

                                 Foreground="style!WeekendColor"

                                 ForegroundHighlight="style!WeekendColor"/>

            </Banner>

          </DayFormat>

        </MonthWeekDayCalendar>

        <MonthWeekDayCalendar Row="0" Column="3" Height="1.1in"

                              Width="1.25in" VerticalAlignment="Center"

                              HorizontalAlignment="Center"

                              Style="BannerControl">

          <MonthFormat DateOffset="2">

            <DockPanel>

              <CalendarText Orientation="Top"

                            Text="#[@TemplateDate_BannerMonthNameYear]"

                            Height="0.19in" FontSize="8pt"

                            Style="BannerTitle"/>

              <WeekHeader Orientation="Top" Height="0.15in" FontSize="7pt"

                          Format="d" Style="BannerWeekHeader"/>

              <StandardGrid Orientation="Fill" NumColumns="1" NumRows="6"

                            Style="BannerBody" />

            </DockPanel>

          </MonthFormat>

          <WeekFormat>

            <DockPanel>

              <CalendarText Orientation="Left" Width="0.15in"

                            Text="#[@TemplateDate_WeekNumber]"

                            FontSize="5pt" Style="BannerText"

                            HorizontalAlignment="Left" Margin="1,0,0,0">

                <ConditionalFormat Condition="ShowWeekNumber eq 'false'"

                                   Visibility="Collapsed"/>

              </CalendarText>

              <StandardGrid Orientation="Fill" NumRows="1" NumColumns="7" />

            </DockPanel>

          </WeekFormat>

          <DayFormat>

            <Banner Text="#[%d]" FontSize="7pt" Style="BannerText">

              <ConditionalFormat Condition="OutsideMonthDays eq 'true'"

                                 Visibility="Collapsed"/>

              <ConditionalFormat Condition="DayOfWeek eq 'sun'"

                                 Foreground="style!WeekendColor"

                                 ForegroundHighlight="style!WeekendColor"/>

              <ConditionalFormat Condition="DayOfWeek eq 'sat'"

                                 Foreground="style!WeekendColor"

                                 ForegroundHighlight="style!WeekendColor"/>

            </Banner>

          </DayFormat>

        </MonthWeekDayCalendar>

      </Grid>

      <!--MonthDayCalendar Sizer-->

      <MonthDayCalendar Row="3" Column="1">

        <MonthFormat>

          <DockPanel Style="LevelOneParent">

            <WeekHeader Orientation="Top" Height="0.2in" FontSize="8pt"

                        Format="ddd" Style="LevelOneTitle"/>

            <WeekGrid Orientation="Fill" NumRows="Auto" NumColumns="7"

                      Style="LevelOneBody" UnitRestriction="true">

              <SpanningAllDayArea MinSize="0" MaxSize="95" IsUniform="false"

                                  Margin="2">

                <AllDayAppointment Height="28" Margin="2,1,2,0"

                                   Style="SingleAppointment"

                                   Background="Yellow">

                  <Bar Visibility="Collapsed" Orientation="Left" Width="5"

                       BorderThickness="0,0,1,0">

                    <ConditionalFormat Condition="BusyStatus eq 'Free'"

                                       Visibility="Visible"

                                       Style="SingleAppointmentBarFree"/>

                    <ConditionalFormat Condition="BusyStatus eq 'Tentative'"

                                       Visibility="Visible"

                                     Style="SingleAppointmentBarTentative"/>

                    <ConditionalFormat Condition="BusyStatus eq

                                      'OutOfOffice'" Visibility="Visible"

                                       Style="SingleAppointmentBarOOF"/>

                  </Bar>

                  <Content Orientation="Fill" Margin="2,0,2,0"

                           HorizontalAlignment="Center" Separator="62"

                           SeparatorFontFamily="Symbol" FontSize="8pt"

                           TextWrapping="Wrap">

                    <ContentElement Source="CategorySymbols"/>                   

                    <ContentElement Source="Subject" FontWeight="Bold"/>

                    <ContentElement Source="Location"/>

                    <ContentElement Source="Organizer"/>

                    <ContentElement Source="CategorySymbols"/>

                  </Content>

                </AllDayAppointment>

              </SpanningAllDayArea>           

            </WeekGrid>

          </DockPanel>

        </MonthFormat>

        <DayFormat>

          <Grid RowSetting="*" ColumnSetting="*" Height="Auto"

                Style="LevelLeafParent">

            <CalendarText Row="0" Column="0" FontSize="10pt"

                          HorizontalAlignment="Right"

                          VerticalAlignment="Bottom" Text="#[%d]"

                          FontFamily="style!FontMajor">

              <Foreground>

                <SolidColorBrush Color="style!mainDark1" Tint=".7"/>

              </Foreground>

              <ConditionalFormat Condition="DayOfWeek eq 'sun'">

                <Foreground>

                  <SolidColorBrush Color="style!WeekendColor" Tint=".7"/>

                </Foreground>

              </ConditionalFormat>

              <ConditionalFormat Condition="DayOfWeek eq 'sat'">

                <Foreground>

                  <SolidColorBrush Color="style!WeekendColor" Tint=".7"/>

                </Foreground>

              </ConditionalFormat>

            </CalendarText>

            <DockPanel Row="0" Column="0" Style="LevelLeafBody" >

              <SpanningAllDayAreaPlaceholder Orientation="Top" />

              <!-- <CompactList Padding="2" Orientation="Fill"

                       FontSize="8pt" TypeFilter="AppointmentsTasks"/> -->

         <List Orientation="Fill" FontSize="7pt" ShowEmptyRow="true"

               MaxRowWrap="5" RowSize="14"

               TypeFilter="AppointmentsTasks">

      <Columns>

                <Column Width="*" ShowDuplicates="True" Left="1"

                        Top="2" Right="1" Bottom="2" >

                  <Sources>

                    <Source Name="CategorySymbols"/>

                    <Source Name="StartTime" Format="t"

                            StartSeparator=""/>

                    <Source Name="EndTime" Format="t"

                            StartSeparator="-"/>

                    <Source Name="Subject" StartSeparator=": "/>

                    <Source Name="Location" StartSeparator="("

                                            EndSeparator=")"/>

                         <Source Name="CategorySymbols"/>

                  </Sources>

                </Column>

           </Columns>

   </List>

            </DockPanel>

          </Grid>

        </DayFormat>

      </MonthDayCalendar>

      <!-- Standard Footer -->

      <Grid Row="4" Column="1" VerticalAlignment="Top" Margin="0,4,0,0"

            RowSetting="Auto" ColumnSetting="*,*,*">

        <CalendarText Row="0" Column="0" Text="Wingtip Toys"

                      HorizontalAlignment="Left" FontSize="8pt"

                      FontWeight="Bold" />

        <CalendarText Row="0" Column="1" Text="#[@TemplateDocInfo_Page]"

                      HorizontalAlignment="Center" FontSize="7pt"/>

        <CalendarText Row="0" Column="2" Date="#[Now]"

                      Text="#[@TemplateDocInfo_PrintTime]"

                      HorizontalAlignment="Right" FontSize="7pt"/>

      </Grid>

    </Page>

  </Display>

</Template>

I have also attached the Content.xml file to this post for your convenience. You can use this to do some comparisons with other templates (like the "Month_StandardMonth01.catx" template it was derived from) , and/or to do some editing of your own :-)

I am going to be posting an ongoing series of topics dealing with editing templates for the Calendar Printing Assistant. I'll start the title of each one with "CPAO:" so they can be easy to find.

And now to editing what is seen in the calendar. I am still using the "Standard Month 01 Letter" template as the base for showing some options here. So here is the code that describes the layout of the appointments and the grid:

      <!--MonthDayCalendar Sizer-->

      <MonthDayCalendar Row="3" Column="1">

        <MonthFormat>

          <DockPanel Style="LevelOneParent">

            <WeekHeader Orientation="Top" Height="0.3in" FontSize="10pt"

                        Format="dddd" Style="LevelOneTitle"/>

            <WeekGrid Orientation="Fill" NumRows="Auto" NumColumns="7"

                      Style="LevelOneBody" UnitRestriction="false">

              <SpanningAllDayArea MinSize="0" MaxSize="53" IsUniform="false"

                                  Margin="2">

                <AllDayAppointment Height="16" Margin="2,1,2,0"

                                   Style="SingleAppointment">

                  <Bar Visibility="Collapsed" Orientation="Left" Width="5"

                       BorderThickness="0,0,1,0">

                    <ConditionalFormat Condition="BusyStatus eq 'Free'"

                                       Visibility="Visible"

                                       Style="SingleAppointmentBarFree"/>

                    <ConditionalFormat Condition="BusyStatus eq 'Tentative'"

                                       Visibility="Visible"

                                       Style="SingleAppointmentBarTentative"/>

                    <ConditionalFormat Condition="BusyStatus eq 'OutOfOffice'"

                                       Visibility="Visible"

                                       Style="SingleAppointmentBarOOF"/>

                  </Bar>

                  <Content Orientation="Fill" Margin="2,0,2,0"

                           HorizontalAlignment="Center" Separator="116"

                           SeparatorFontFamily="WingDings" FontSize="8pt"

                           TextWrapping="NoWrap">

                    <ContentElement Source="Subject" FontWeight="Bold"/>

                    <ContentElement Source="Location"/>

                    <ContentElement Source="Organizer"/>

                    <ContentElement Source="CategorySymbols"/>

                  </Content>

                </AllDayAppointment>

              </SpanningAllDayArea>           

            </WeekGrid>

          </DockPanel>

        </MonthFormat>

        <DayFormat>

          <Grid RowSetting="*" ColumnSetting="*" Height="Auto"

                Style="LevelLeafParent">

            <CalendarText Row="0" Column="0" FontSize="46pt" FontWeight="Bold"

                          Text="#[%d]" FontFamily="style!FontMajor">

              <Foreground>

                <SolidColorBrush Color="style!mainDark1" Tint=".7"/>

              </Foreground>

              <ConditionalFormat Condition="DayOfWeek eq 'sun'">

                <Foreground>

                  <SolidColorBrush Color="style!WeekendColor" Tint=".7"/>

                </Foreground>

              </ConditionalFormat>

              <ConditionalFormat Condition="DayOfWeek eq 'sat'">

                <Foreground>

                  <SolidColorBrush Color="style!WeekendColor" Tint=".7"/>

                </Foreground>

              </ConditionalFormat>

            </CalendarText>

            <DockPanel Row="0" Column="0" Style="LevelLeafBody" >

              <SpanningAllDayAreaPlaceholder Orientation="Top" />

              <CompactList Padding="2" Orientation="Fill" FontSize="8pt"

                           TypeFilter="AppointmentsTasks"/>

            </DockPanel>

          </Grid>

        </DayFormat>

      </MonthDayCalendar>

This area of code can be broken into two parts - the Month Format part and the Day Format part.

Here is the Month Format part:

      <MonthDayCalendar Row="3" Column="1">

        <MonthFormat>

          <DockPanel Style="LevelOneParent">

            <WeekHeader Orientation="Top" Height="0.3in" FontSize="10pt"

                        Format="dddd" Style="LevelOneTitle"/>

            <WeekGrid Orientation="Fill" NumRows="Auto" NumColumns="7"

                      Style="LevelOneBody" UnitRestriction="false">

              <SpanningAllDayArea MinSize="0" MaxSize="53" IsUniform="false"

                                  Margin="2">

                <AllDayAppointment Height="16" Margin="2,1,2,0"

                                   Style="SingleAppointment">

                  <Bar Visibility="Collapsed" Orientation="Left" Width="5"

                       BorderThickness="0,0,1,0">

                    <ConditionalFormat Condition="BusyStatus eq 'Free'"

                                       Visibility="Visible"

                                       Style="SingleAppointmentBarFree"/>

                    <ConditionalFormat Condition="BusyStatus eq 'Tentative'"

                                       Visibility="Visible"

                                       Style="SingleAppointmentBarTentative"/>

                    <ConditionalFormat Condition="BusyStatus eq 'OutOfOffice'"

                                       Visibility="Visible"

                                       Style="SingleAppointmentBarOOF"/>

                  </Bar>

                  <Content Orientation="Fill" Margin="2,0,2,0"

                           HorizontalAlignment="Center" Separator="116"

                           SeparatorFontFamily="WingDings" FontSize="8pt"

                           TextWrapping="NoWrap">

                    <ContentElement Source="Subject" FontWeight="Bold"/>

                    <ContentElement Source="Location"/>

                    <ContentElement Source="Organizer"/>

                    <ContentElement Source="CategorySymbols"/>

                  </Content>

                </AllDayAppointment>

              </SpanningAllDayArea>           

            </WeekGrid>

          </DockPanel>

        </MonthFormat>

First - MonthDayCalendar is in Row 3 and Column 1. If you refer back to the Page settings section - you will see that this area was set with asterisks (*) since this area will be described using additional code.

The WeekHeader part describes - well - the week header:

<WeekHeader Orientation="Top" Height="0.3in" FontSize="10pt" Format="dddd"

            Style="LevelOneTitle"/>

It describes the height of this area, the font size to use, and the format of the days. Using "dddd" there means to spell out the entire day name. Using "ddd"  means that abbreviations would be used like Sun Mon Tue etc. Using just "d" means using just the first letter of the day.

Orientation of "Top" means that it is placed on top of the month grid. Designating "Bottom" here would place this WeekHeader on the bottom of the grid.

The WeekGrid part tells how to make the grid.

<WeekGrid Orientation="Fill" NumRows="Auto" NumColumns="7" Style="LevelOneBody"

          UnitRestriction="false">

The orientation is "fill" which means to fill each day in the grid. NumRows of "Auto" means that it should use as many rows as is needed for the entire month. NumColumns is 7 because there are 7 days in each week. "UnitRestriction" tells whether or not to show data from other months. When set to "false" it will show data from other months in the grid. When set to "true" then data from other months will not show in the grid.

UnitRestriction="false"

UnitRestriction="true"

Notice that the previous month's items and dates are not shown when UnitRestriction is set to "true".

All the code in green above describes how All Day Events will be done.

              <SpanningAllDayArea MinSize="0" MaxSize="53" IsUniform="false"

                                  Margin="2">

                <AllDayAppointment Height="16" Margin="2,1,2,0"

                                   Style="SingleAppointment">

                  <Bar Visibility="Collapsed" Orientation="Left" Width="5"

                       BorderThickness="0,0,1,0">

                    <ConditionalFormat Condition="BusyStatus eq 'Free'"

                                       Visibility="Visible"

                                       Style="SingleAppointmentBarFree"/>

                    <ConditionalFormat Condition="BusyStatus eq 'Tentative'"

                                       Visibility="Visible"

                                       Style="SingleAppointmentBarTentative"/>

                    <ConditionalFormat Condition="BusyStatus eq 'OutOfOffice'"

                                       Visibility="Visible"

                                       Style="SingleAppointmentBarOOF"/>

                  </Bar>

                  <Content Orientation="Fill" Margin="2,0,2,0"

                           HorizontalAlignment="Center" Separator="116"

                           SeparatorFontFamily="WingDings" FontSize="8pt"

                           TextWrapping="NoWrap">

                    <ContentElement Source="Subject" FontWeight="Bold"/>

                    <ContentElement Source="Location"/>

                    <ContentElement Source="Organizer"/>

                    <ContentElement Source="CategorySymbols"/>

                  </Content>

                </AllDayAppointment>

              </SpanningAllDayArea>           

The "SpanningAllDayArea" line describes how much space will be used for all day events. The Min is 0, Max is 53 - which allows about 3 or 4 All Day Events to show in a day. If you need more space here - just increase the MaxSize value as needed. I have found that around 160 is the most you can have/need for a standard letter-sized portrait printout.

The "AllDayAppointment" line describes the height for each all day event. You can make this shorter - but it's best to change the font size to a smaller size as well so that the text will fit correctly. The style of SingleAppointment is self-explanatory. You can change the default blue for these to a different color using the "Background=" setting, like  Background="Yellow".

The "Bar" and "ConditionalFormat" lines here describe how to format the all day events if they are marked as tentative, out of office, or free. There is a small bar on the left that will signify this:

The "Content" and "ContentElement" lines describe what text will be seen and how it will be seen.

<Content Orientation="Fill" Margin="2,0,2,0" HorizontalAlignment="Center"

         Separator="116" SeparatorFontFamily="WingDings" FontSize="8pt"

         TextWrapping="NoWrap">

The Separator is a diamond ( t ), which is character 116 (0x74) in the Wingdings character set. You can use the Character Map utility to find a replacement - for instance you might want a greater-than sign instead ( > ) from the Symbol character set, so that would be  Separator="62"  SeparatorFontFamily="Symbol"

The TextWrapping setting can be set to "NoWrap" or "Wrap". "Wrap" will allow the text to wrap to the next line if needed, and if there is space for it. For instance - I made some changes in this area as sort of described above, and here is how things look:

Here is the changed code that affects the all day events above:

          <DockPanel Style="LevelOneParent">

            <WeekHeader Orientation="Top" Height="0.25in" FontSize="8pt"

                        Format="ddd" Style="LevelOneTitle"/>

            <WeekGrid Orientation="Fill" NumRows="Auto" NumColumns="7"

                      Style="LevelOneBody" UnitRestriction="true">

              <SpanningAllDayArea MinSize="0" MaxSize="100" IsUniform="false"

                                  Margin="2">

                <AllDayAppointment Height="28" Margin="2,1,2,0"

                                   Style="SingleAppointment" Background="Yellow">

                  <Bar Visibility="Collapsed" Orientation="Left" Width="5"

                       BorderThickness="0,0,1,0">

                    <ConditionalFormat Condition="BusyStatus eq 'Free'"

                                       Visibility="Visible"

                                       Style="SingleAppointmentBarFree"/>

                    <ConditionalFormat Condition="BusyStatus eq 'Tentative'"

                                       Visibility="Visible"

                                       Style="SingleAppointmentBarTentative"/>

                    <ConditionalFormat Condition="BusyStatus eq 'OutOfOffice'"

                                       Visibility="Visible"

                                       Style="SingleAppointmentBarOOF"/>

                  </Bar>

                  <Content Orientation="Fill" Margin="2,0,2,0"

                           HorizontalAlignment="Center" Separator="62"

                           SeparatorFontFamily="Symbol" FontSize="8pt"

                           TextWrapping="Wrap">

                    <ContentElement Source="Subject" FontWeight="Bold"/>

                    <ContentElement Source="Location"/>

                    <ContentElement Source="Organizer"/>

                    <ContentElement Source="CategorySymbols"/>

                  </Content>

                </AllDayAppointment>

              </SpanningAllDayArea>           

            </WeekGrid>

          </DockPanel>

So now the all day appointments have a bigger height (28 instead of 16) which allows wrapping to work, which shows the location for the all day events. I also went ahead and changed the separator to the greater-than symbol. And I changed the background to yellow as well.

The "ContentElement" lines describe what to display in these All day event boxes - like the Subject, Location, Organizer, and CategorySymbols.

We will look at the DayFormat area in the next section.

The Calendar Printing Assistant uses templates with the extension .CATX. The templates are stored in the Office template folder, which is typically the C:\Program Files\Microsoft Office\Templates folder.

These files are essentially renamed compressed files that can be extracted and edited. In order to do this, copy the .CATX file you are interested in editing to a different location. Then rename the file to have a .ZIP extension. After renaming it to have a .ZIP extension, you can extract the files to be edited. You will see something similar to the following:

These files will all be Read Only, so change the props so that they are no longer Read Only for editing.

I like to make a copy of the original CATX file so I can scrap and start over again if needed.

The really important files to edit are Content.xml - located in the \Cal directory, and Metadata.xml - located in the \Cal\Metadata directory.

Content.xml is the main file for the layout of the page and controls how appointments and tasks are seen. Metadata.xml controls page size, the name of the template as seen in the Calendar Printing Assistant, and other general template layout info.

When you are done editing, you will want to zip up the _rels and Cal folder along with the "[Content_Types].xml" file back into a new ZIP file. Then rename that file to have a .CATX extension and place it in the  C:\Program Files\Microsoft Office\Templates folder. Then it can be used in the Calendar Printing Assistant.

If you replace the same file/template name in CPAO - you do not have to restart the program - just switch templates in the app and then switch back to the one you were editing and the updated template will show (or maybe not if your editing didn't work!)

After making all these posts on editing CPAO - I can see that it will be nice to have them all together in one paper that can be used for reference. I have uploaded a PDF that has all the CPAO template editing posts in them. Hopefully this will be a help for anyone who needs to edit these templates to fulfill a printing need for Outlook calendars.