Right-click specifically on the .001 file, select "7-Zip," and choose "Extract to..." .
You cannot open these files individually; you must use a tool that understands how to "join" them back together. led-4.7z.001
The most important step is ensuring you have in the sequence (e.g., led-4.7z.001 , led-4.7z.002 , led-4.7z.003 ). Right-click specifically on the
Right-click the .001 file and select "Extract Here." WinRAR will automatically find the other parts to complete the process. Right-click specifically on the .001 file
All parts must be stored in the same directory on your computer.
A popular alternative on the Microsoft Store for handling multi-part archives. How to extract part files 001 using 7zip on windows (2026)