If you cannot open an Excel file and see Excel cannot open the file because the file format or extension is not valid error, see this post.

Learn how to open an XML File in Excel, Word, Chrome, and Edge on a Windows computer using the methods mentioned in this post.

If Excel files are not opening on your Windows 11 computer, you can find the reasons and the most effective solutions in this article.

XLOOKUP is Excel’s modern fix for everything VLOOKUP got wrong. It’s simpler, more flexible, and available in Excel 365 and ...