: Look for files with the same name but different extensions (like .001 , .002 ) or similar random strings.
Do you have the of this file, or are you trying to identify the source where it was downloaded? PQ12Fi.7z
In the context of file sharing or large downloads, "piece" often refers to one of several parts of a larger file. Here are the most likely scenarios for this specific file: : Look for files with the same name