To change your default file manager in Windows 11, open the Start menu, type the name of the third-party file explorer you installed, and select "Open File Location." ...

Need to use third-party programs to open files on your PC? Here's how to change file associations in Windows 10 and choose which apps open which file types.

In the Mac OS it is possible to change the default program the operating system will use to open a file when you double-click on it. After you have changed this file association, though, you may ...

Now that you’ve changed the default program for this file, the button for Change All is active. This button will set your Mac to use the selected application to open files of this type.

If you want a different app to always open a particular file type, here's how to do it.

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.

If you’re tired of Windows opening files in the wrong apps, changing file associations may fix the problem. Here’s how to do it.