Musicians like TheFatRat often share open-source stems for remixes via 7z archives.
Upload the file to VirusTotal to check for malicious signatures. To help me provide a more specific analysis: Noah.7z
It might be a custom backup for a specific application like Frontu or Plaky . Next Steps for Analysis Musicians like TheFatRat often share open-source stems for
Without the ability to inspect the file directly, a write-up depends on the context of where you found it. Possible Contents Noah.7z
I can give you a once you share these details. Frontu - Field Worker - Apps on Google Play