Data Recovery from a Simple NAS In the family of powerful and cost-effective data recovery software from R-TT, R-Studio for Mac is specially designed for the Mac OS environment. It recovers files from HFS/HFS+ (Macintosh), FAT/NTFS/ReFS (Windows), UFS1/UFS2 (FreeBSD/OpenBSD/NetBSD/Solaris) and Ext2/Ext3/Ext4 FS (Linux) partitions.