How to open big games with .001 and .002 and .00X parts
📂 How to Open and Join .001 Files
🛠️ How to extract or join with 7-Zip
Many folks try WinRAR, but it often fails with .001 files. 7-Zip is much more powerful for this task.
1 Install 7-Zip. Find your .001 file set and ensure all parts (.002, .003, etc.) are in the same folder. Right-click the .001 file.
A – Select 7-Zip from the menu to see more options.
2 Select "Extract Files" from the 7-Zip submenu.

3 Choose the destination folder and click OK. It defaults to the current folder.

4 Wait for the extraction to complete. 7-Zip will join all parts automatically.
✅ Done! Now use the appropriate program to open the joined file.
Original article: www.newsgroupreviews.com/001-files.html