We show you how to open files with no extension in Windows 11/10. You can try these tricks or use one of these free software or online tools.

This free Web service does one thing and does it well: changing your file formats instantly with no hassles.

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.

Click Open. If the app that you want to use to open the file type is greyed out, it's because macOS doesn't think there's a valid association between the two.

Google's latest 'blend online with offline' trick is automatically opening Google Drive files from the web with your desktop apps.

Type "wordpad" in the space provided and click the "OK" button to launch WordPad. Click the "File" menu and select the "Open" option.