Hellobecause I can open or unpack
What are you trying to ask?
Big file extractor need Where can I download ?
When downloaded, hold shift and right-click on this directory (where ever you have Steam installed), and select "Open command window here":
Then you'll type in the following:
I do not have such
Once you have the the GBX tools installed, just download "XUnpack", and you will not need to do anything in a command window.
Sometimes you need to hold SHIFT+right click to get that option.
he right-clicked on "archive.exe", instead of the folder itself
Or just do what @KennyTheKlever said...
You can also use this toolhttps://mega.nz/#!1sAXCJZL!eXLWRzjLFT9uDmwFqwBlx9q3RuTLhDdArdEVujBm2MY