Windows associates data files with applications so that the appropriate program launches automatically when the icon or name of the data file is clicked. For example, if a GIF image is associated with ...

Many times we receive files whose extension is unknown. This often happens when the sender puts a wrong file extension and it becomes difficult to open the file due to an unknown format. Here is a ...

The type of file format that the current data will be saved to if no other file type is selected. For example, in a graphics program, the default file might be a JPEG or GIF. In Microsoft Word, the ...