Quick Installation Steps: (1) After you have finished downloading the demo file; please uncompress it. The uncompressed file would have the name pmac.dmg (2) Double click the file pmac.dmg . Now you will get the StellarPhoenix executable under a mounted volume named as pmac. (3) Copy this StellarPhoenix File to application folder and run the software to begin your data recovery process. CAUTION: Do not download software on the drive that contains lost data. This may cause disk overwrite and permanent data loss!