CHK-Mate will examine the contents of the CHK files and determine if the contents are known filetypes, such as MS-Word files or GIF files. When contents are recognized (for example, as a Word document), the CHK files are copied to a new file with the correct file extension (Filexxxx.CHK -> Filexxxx.DOC). The new file extension allows you to easily open the file using the associated program.

If the contents of a CHK file can not be linked to a known filetype, you have the option to extract all the readable text from the CHK file. Use this option to recover information from a CHK file that is perhaps not intact enough to be recovered completely as a known filetype.