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 ...

If you have a bunch of files in a folder which you want to name sequentially and convert to the same file type or format, how do you go about doing this? If it is just a few files, you can do it ...

Microsoft is making it easier to change your default file associations by adding a new search feature that lets you quickly find the extension you wish to modify. When a program is installed in ...