PDF, or depending on the type of extension. CHK file to its original extension for example, change from. We will achieve this by changing the extension of the. Try to convert the found.000 file to the original file type.There are several alternatives on how to recover found.000 files and here we present some of them. CHK files that you find And in most cases, it is best to simply delete any found. If you haven't lost important data, it's best not to mess with found.000 or. Unfortunately, you will not be able to recover much data from files of this type. CHK file can contain one or more entire files, fragments of a single file, or fragments of multiple files. Found.000 files are perceived by Windows as 'recovered file fragments.' A single.