If your Excel files are opening in Notepad on Windows PC, here's how you can reset the settings to make .xls, .xlsx, etc files open in Excel.

KEYLOK has partnered with DoneEx Xcell Compiler to enable the spreadsheet author to compile a Microsoft Excel spreadsheet into an executable (.exe) file. Combining the compiled Excel spreadsheet ...

If you see The file couldn't open in protected view error while opening Microsoft Excel, the fixes listed in this post will help you.

Learn how to use a Microsoft 365 setting to choose whether to open files in the online or desktop app, giving you full control for each file.