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Excel cannot be open the file 'filename.xlsx' because the file format or file extension is not valid
Hi All, I have a excel.xlsx file saved in my system which has been corrupted .I atleast need to recover the data stores .It is a file of 124 KB and has around 35 worksheets in the workbook .I hav...
Muthu69 This same thing just happened to me and, using trial and error, finally found a solution and got my Excel file to work again! Log in to your OneDrive, find the file, right click, click version history, and on the left panel, click on prior versions until you find one that works and click restore. Hope this is helpful! Take care.
ChelseaSaurman - this actually worked, thank you so much for posting 🙂