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 ...

This guide explains how to change the file extension in Windows 11. It also clarifies the distinction between file extensions and file types. Change a File Extension the Easy Way The simplest way ...

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.

Do you need to change a file type? Here are a few ways to do this on Windows 11.

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 do I change the file extension for all files in a folder? To change the file extension for all files in a folder, in Windows 7, click on the Organize button and then click Folder and search ...

When you open files that have a particular file extension, Windows will look at its configuration to determine what the default program should be in order to work with these files. The default ...

How to change the Gmail attachment icon to show file type Get rid of the boring paperclip icon for an e-mail attachment in Gmail by using this handy Chrome extension.

Managing files on an iPhone has become significantly easier with recent updates to iOS, particularly with the introduction of the ability to change file extensions directly within the Files app ...

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