Mac overwritten files recovery is really a difficult process so you need to be careful enough so that you can avoid this type of situation. There can be a mistake when you have deleted some your files from the Mac drive and in a hurry to free up the disk space you have emptied the trash also. So the files can not be restored from the trash. You need to recover the files as soon as possible because the files are still on the disk you just can't access it. Another way for mac overwritten file recovery is to use any backup source that can be any of your personal storage drive or you can use the time machine backup utility to restore the deleted files but you will get the older copy if the backup was not updated. This will certainly prove no good to you so you have to use the Mac data recovery software as soon as possible for the Mac overwritten file recovery. The software will scan the Mac drive for whichever files were deleted, it is equipped with advance algorithm to recover almost all the files. So you should download the software and use it now.