Excel file wrong format

Occasional Visitor

Im getting this message when i try to open my excel spreadsheet. "Excel cannot open the file because the file format or file extension is not valid."

Please help, was sent here from a representative who was not able to figure out a solution.

1 Reply


To view or edit in Office for the web, use the following table to check which file formats are supported.

Unable to View or Edit Office files by using Office Online or Office Web Apps

Microsoft Excel

File formatView in Excel for the web or Excel Web AppEdit in Excel for the web or Excel Web App

Open XML (.xlsx)



Binary (.xlsb)



Binary (.xls)

Yes on OneDrive

Not on SharePoint

Yes on OneDrive.

Not on SharePoint.

Macro (.xlsm)


Yes. However, you are prompted to create a copy of the file that has the macros removed when you save the changes that you have made.

Other file formats (.xltx, .xltm, .xlam, .xlm, .xla, .xlt, .xml, .xll, .xlw,ods, .prn, .txt, .csv, .mdb, .mde, .accdb, .accde, .dbc, .igy, .dqy, .rqy, .oqy, .cub, .uxdc, .dbf, .slk, .dif, .xlk, .bak, .xlb)




Additional Information:

Free Excel for the web templates on Office.com

Differences between using a workbook in the browser and in Excel


Hope this information was helpful to you.



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