Microsoft Excel files are in Binary Interchange File Format (BIFF) and not in
text/ASCII format which can be edited and saved using a text editor like
Notepad.

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Jacob Skaria


"Kurt" wrote:

I only saved it in notepad and didn't make any changes except to
delete a letter and then re-type it in. Now Excel refuses to recognize
it as an Excel file, even though I didn't change the xls extension!
What do I need to do to get Excel to recognize it as an Excel
spreadsheet again? TIA! :)