Note: We have included screenshots of Excel. However, if you want to make the change in Word or PowerPoint, you must follow the same steps. The list of file extensions will be different as per the app ...

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 ...

(DOCument file) The default file format in a version of Word, Microsoft's word processing application prior to Microsoft Office 2007. DOC files use a .DOC extension and differ from text files (.TXT ...

Microsoft has made several changes to a Release Candidate version of Office 2010 made available to testers recently. One change in particular prompts users whether they want to use Office Open XML ...

What steps do I need to take to change the default action on Windows XP and Windows 7 when someone tries to open a CHM file? I want the file extension to be associated with notepad.exe for ALL users.

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 ...