We show you multiple ways using which you can change File Type.r Extensions or Format on Windows 11/10. You can also use the Command Prompt.

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.

Mac OS X computers use a default application to open every file type based on its file extension. If you don't want to use the default application when opening a file, you can select "Open With ...

Changing one file type The quickest method to change a single file type is to do it from the Open With menu. If you want to change more than one file type at a time, skip to the next section.

Do you want to open a file type or link with a specific app? Here's how to change the default app settings on Windows 11.

How to change the default program a file opens with in Windows 7 When you open files that have a particular file extension, Windows will look at its configuration to determine what the default ...

The third column, Current Default, shows you the application that currently handles the associated file extension. Click "Change Program" to bring up the Open dialog window.

How to change the default apps that open files For a longer-term solution you’ll need to go through individual applications and change them manually.

Apps that open files In macOS, you can change what app opens a specific file type from the file itself. Right-click a file that you want to change the default app that opens, and select Get Info.

Get a more generic solution to identifying unknown or unrecognized file types & extensions with these free tools for Windows 11/10 computer.