Knowing the or the intended use of the file will help me give you a much more specific answer.
: Compressed game files, mod packs, or firmware updates. h8WR6YM0u2GJ3xAT-DPB3.7z
: Automated exports from servers or cloud storage. Knowing the or the intended use of the
this filename? (e.g., a specific website, email, or server?) a specific website
: Scan the file with VirusTotal before opening, as .7z files are often used to bypass basic email scanners.
Do you need help based on what is supposedly in that archive?