IF you are wondering is overwrite deleted files mac recovery possible then here is the answer for you. The files that you delete on Mac are sent to the trash folder where you have the option to either restore the files or remove them completely by emptying the trash. Now the operating system deletes the location info of the file while the file still remain on the hard drive. The space occupied by the file is marked as free and that space could be assigned to any new file and the previous file will be overwritten. Now is the situation where overwrite deleted files mac recovery is required. The fact is that the overwritten file can not be recovered by any means however if you have the separate backup in the time machine or any other location then you can recover it easily. If the backup is not available the you should prevent overwriting by stop using the Mac drive and then you can use Mac data recovery software that will recover the files that is not overwritten. It scans the drive and provide the preview of recoverable file, select and restore them. you can download and use this software for complete recovery.