A file extension, or file name extension, is the letters immediately shown after the last period in a file name. For example, the file extension.txt has an extension of .txt. This extension allows the ...

The problem can occur when the Word file you are trying to open has a different file extension than the file you are attaching. It happens when you convert the file manually. There can be other ...

The default setting for Windows is to not display a file's extension, which is the last period in a file name followed by 2 or 3 letters. Therefore, when viewing files in Windows you would only see ...

You may rely on Microsoft Word to prepare business correspondence, lay out documents such as annual reports or create marketing materials, but Word also operates as a catch-all for existing documents.

A PDF — which stands for Portable Document Format — is an open standard document file extension created by Adobe. It has gained popularity in recent years because ...