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 ...

Microsoft will soon be blocking an additional 38 file extension from being downloaded as attachments in Outlook on the Web in order to protect users from malicious files. These additional extensions ...

A file extension is a suffix that is added to the end of a file name after a dot. It is usually two to four letters long. File extensions help Windows and other operating systems to know the standard ...

I have used Windows File Explorer for several years, and over that time, I have not always liked the tool. In fact, I often ...

Windows only: While Windows Explorer can sort files by type, by default it doesn't display or sort files by extension in a separate column—but the Extension Column add-on does just that. Install this ...

I was all set to put this “Windows Explorer Explained” series to rest for a while, but then reader Martin wrote in with a question that comes up a lot: in Windows 7, how do you reveal the hidden file ...

A bug in version 2409 of Microsoft 365 can cause Word documents to be deleted instead of saved, Microsoft has warned. The bug affects files that contain the # character or have file extensions in ...