Place all numbered parts ( .001 , .002 , etc.) in the . Right-click only the .001 file .
If you have a file ending in .001 , it is likely part of a "split archive." To use it, you must have all parts ( .001 , .002 , etc.) in the same folder and "join" them back together. Download 001 txt
7-Zip is the standard recommended tool for this process. How to Join: Download and install 7-Zip. Place all numbered parts (