as with the regular deletion, word document on a disk is not fully removed during high-level format. instead, the area on the disk containing word document is merely marked as available and recovers the old data unless overwritten.

Make this proper case.
As with the regular deletion, Word document on a disk is not fully removed during high-level format. Instead, the area on the disk containing word document is merely marked as available and recovers the old data unless overwritten.