To recover a .chk file, you have to rename it with the correct extension by using one of several third party tools. These tools identify the type of file renamed by Microsoft, and assign it an appropriate extension so it can be opened.Continue Reading
Determine the name and path of the folder where the .chk files reside, and create or locate a directory where you want the renamed files to be located.
Select the appropriate third party program, such as UnCHK or CHK-Mate, and use a directory of the .chk files as input. After the program completes, look for the files in the second directory specified with new extensions.
Now that the files have appropriate extensions, such as .doc or .jpeg, open them using the standard interfaces.