You might be interested in a feature that generates or manages these types of randomized filenames for privacy and tracking.
You might be looking for a feature to improve how software handles, identifies, or repairs multi-part archives like this one.
The identifier appears to be a specific split archive file (the second part of a multi-part 7-Zip file). While the exact contents are obscured by the random string of characters, this naming convention is common in large data transfers, software distribution, or encrypted backups.