When you open certain file types in Windows 7 or Vista, such as an Outlook email attachment, Windows displays a warning message about opening a file from an untrusted source. If you trust the sender ...

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 ...

Every file that we have saved on our computers has a particular extension. The file extension is added at the end of the filename followed by a dot (.). It tells the operating systems about the ...

First, open Windows Settings by pressing Windows+1 on the keyboard. You can also rick-click the Start button and choose Settings from the menu. In Settings, select "Apps" in the sidebar and choose ...

Whether you're looking at documents regarding business analysis, performance reporting or financial management, you might come across a special type of Microsoft Excel spreadsheet with the file ...