If you can't open a file on your computer, don't give up right away. These tricks will give you a fighting chance of accessing or recovering its contents.

A JAR file is an archive file but is more than a file compression format. Here's how to open, run, or execute JAR files.

If you are on Windows 11, you can then select "Show More Options" and then "Open". You can skip the "Show More Options" step in Windows 10.

Free Opener truly can open a large amount of formats, including documents, spreadsheets, presentations, PDFs, media, and code. Sadly, it can’t edit most of them.