Packing large datasets, Virtual Machine images, or high-definition video projects [1].
The files must be named sequentially in the same folder (e.g., File.7z.001, File.7z.002) for the extraction software to recognize them as part of the same set [1]. To help you with this specific file, could you tell me: PG.7z.001
Distributing large game patches or software installers via internet channels [1]. Packing large datasets
You cannot extract data from PG.7z.001 alone. It acts as a pointer to the rest of the archive. Virtual Machine images