If you weren't expecting a 20-part download or a data recovery file, it is safer to delete it.

"File020.rar" might simply be the 20th compressed archive the software successfully pulled from a damaged drive. 3. Automated Scans or Backups

In the world of data recovery, when a hard drive or SD card is "wiped" or corrupted, recovery software (like PhotoRec or Recuva) often cannot find the original names of the files.

Some automated backup systems or malware scanners generate reports or logs and save them with sequential numbering. If a system is configured to archive logs every day or hour, "File020" would simply be the 20th entry in that sequence. ⚠️ A Note on Security