re: "The file you are trying to open, [filename], is in a different format than specified by the file extension" error opening Excel files

inam101 — Wed, 03 Apr 2013 04:00:41 GMT

Hello,

The same error came with me when opening a CSV (comma separated values) file in MS Excel.

When I checked, the first word of the file was "ID" (for customer id as the file contained customers data). When I changed the "ID" to "Customer Id", the issue was resolved.

Thanks