Obfuscating the contents of large games, high-definition videos, or software suites.
Automated cloud backup tools often rename chunks this way. GpiXRzbk8f1CbcnD.7z.014
The string GpiXRzbk8f1CbcnD appears to be a or an encrypted filename. These naming conventions are commonly used in: Obfuscating the contents of large games
To avoid automated takedowns.