If you cannot open the Excel file from its location ... to open the Excel file without any problems. How to fix Excel file format and extension don’t match? To fix the “Excel file format ...

The “File Format and Extension Don’t Match” error in Excel happens when a file’s extension, like .xls or .xlsx, doesn’t match its actual format. This ...

Hamza is a certified Technical Support Engineer. The ‘Excel Cannot Open the File’ error usually occurs when attempting to open an older Excel file with a newer ...

DAT files are files ... or file shares with the DAT extension. If the DAT file you're trying to open is text, you can convert the file into text in the Microsoft Excel program by first saving ...

A file’s format and extension not matching means the file was saved in a different format than its extension. Problems can occur when trying to open the file if the program doesn’t recognize the ...