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 ...

All your PDF files open in Adobe Reader, but you want them to open in Preview. All your JPEG files open in Preview when you’d rather they open in Photoshop. How do you change what Mac OS X uses as the ...

Image file formats are plentiful, from PNG and JPEG to the dreaded WebP. But what happens when you want to convert something from one file type to another? The conversion process was once an arduous ...

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 to ...

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 ...

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 ...

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 ...