Ever got stuck with a file that has some mysterious extension? Where no matter how much you try, the Jigsaw puzzle doesn’t seem to fit together? So, for instance, if the file has the extension ...

On computers and mobile devices, file extensions are the suffixes that apps append to filenames. When you see an item like "document.docx" for example, the .docx extension tells the computer and the ...

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 ...