Copy all three into the folder. If you only have the .GPP file, you need to create a .DEF or copy it from a similar post.
If you are a user looking for a file:
Avoid cracked “post processor generators” or keygens – they are often vectors for ransomware. Also, distributing SolidCAM’s proprietary .gpp files without permission violates the EULA.
Once you have downloaded your free post processor (the .gpp and .vmid files), follow these steps to ensure safety: