Use a service like VirusTotal to scan the file for malware before opening.

"UPM" is also a model series for Universal Panel Meters . It is possible the file contains firmware or configuration software for this type of industrial hardware. Security and Usage Note

The most common use of "UPM" refers to the Unity Package Manager, which handles modules and assets in the Unity game engine. A .rar file with this name might be a compressed archive of a specific package (version 016) intended for manual installation or sharing.

To provide a more specific report, could you share or its file size ? Get Started: Useful Packages and Modules (UPM) - Intel

Intel's UPM library is an open-source repository for sensor drivers used in IoT development. The file could be an archived version of these drivers or a specific module update.

If you downloaded this as a patch or software update, check for a provided MD5 or SHA-256 checksum to ensure the file has not been tampered with.