Suppose you forgot to save a file on Mac in haste and in mean time your Mac computer terminates due to abrupt power supply . When you restart the system, it is found that the file is no longer available. When a file is closed without being saved properly on the hard drive, it is usually lost. This is one of the most frequent cause for the loss of data. In such situation there is an urgency of Mac unsaved file recovery. Mac OS X provides Auto-recovery features that allow the unsaved deleted file to be recovered. It is an inbuilt application of Macintosh Operating system. This application automatically recover unsaved lost files when the system restart. But some times the unsaved file get corrupt and due to which it is unable to recover. What is to be done next if you want to have Mac unsaved file recovery. There is no point searching for it in the trash as the file has not been saved on Mac. Actually unsaved files creates a temporary folder on Mac OS X which gets deleted due to abrupt shutdown. This is where Mac data recovery software can be instrumental in Mac unsaved file recovery.