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" from ...

Microsoft uses file associations to set default programs for opening different file types on all its operating systems. As a result, when you open a file, be it text, image, or document, on your ...

One of the things we get a lot here at Cult of Mac, especially in our coverage of games, is folders full of promotional images. Now, for a variety of reasons, we often need to change the type of those ...

Changing file formats in Windows 11 can be done via File Explorer for quick swaps. Command Prompt offers a trickier method to alter file extensions, but it must be done carefully. Compatible apps like ...

When you double-click on a file in Windows, it will automatically open a default program that is configured to manage these types of files. It is common, though, want or need to use a different ...

When you double-click a file on your computer, Windows may launch an application to run or display the file. Windows knows how to do this because it maintains a list of known file types and the names ...

When you double-click on a file in Windows XP, the operating system will automatically open the file using a program that has been is associated with the file's extension. It is possible, though, to ...