.FH File Extension
File TypeSymantec Backup Exec File
What is an FH file?
"File history" backup file created by Backup Exec, a backup application for small to medium-sized businesses; stores backup data for a physical or virtual computer system; saved as part of a "Catalog," which is a collection of files backed up at a specific time.
FH files are used for performing file system restores in the advent data is lost or corrupted. They are saved with other file types that together comprise the backup.