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.

FileTypesMan allows you to view, add, remove edit file extensions and types on Windows 11/10. You can always manually set or change File Associations & Extensions.

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.

If your aim is to manage how Google Chrome associates files, on the other hand, you can focus on disabling -- or installing and enabling -- associated Chrome extensions instead.

Microsoft is making it easier to change your default file associations by adding a new search feature that lets you quickly find the extension you wish to modify.

There's another way you can change a file type's associated app in macOS: Right-click (or Ctrl-click) on the file in a Finder window and select Get Info.

Just type in your filename and extension surrounded by quotes e.g. "cart.php" You don't need to hit the combo box and change it and you won't get cart.php.txt when you go looking for the file.

Mac 911 MacOS: How to change the default app for a file Only file types associated with applications receive automatic mappings.

Get rid of the boring paperclip icon for an e-mail attachment in Gmail by using this handy Chrome extension.

Read about changes to file types blocked in Outlook on the web, which will prevent download of attachments with file extensions associated with Python, PowerShell, digital certificates, Java, etc ...