Pq12fi.7z

: Right-click the file and select "Extract Here." If it is a standalone archive, it will open; if it is part of a set, the software will prompt you for the "next volume."

: Look for files with the same name but different extensions (like .001 , .002 ) or similar random strings. PQ12Fi.7z

Do you have the of this file, or are you trying to identify the source where it was downloaded? : Right-click the file and select "Extract Here