App: 7zMaster
Developer: 海宁 徐
Genres: Utilities

7zMaster is a compression tool with 7z format. 
• supports compression algorithms include:lzma,lzma2,ppmd,bzip2 
• Supported decompression formats include: 7z, rar, zip, gzip, bzip2, tar, lzma, cab, iso, grzip, lrzip, lzop, rpm, uu, xz, ar, cpio, raw, xar, lha, mtree, cbr, cbz, cb7
• Support for compressed data recovery capabilities, more secure your archive 
• Support batch decompression archives
• Support extracting Rar5.x format 
• Support AES256 encrypted protection 
• Support for sub-volume compression 
• Support preview the archive content 
• Support quick look archive，Easy to read/watch comic or album in archive 
• Supports up to 4 threads compression algorithm, Compression saves time

email: xhnsworks@gmail.com 

7zMaster has a complete user interface, to maximize the use of the various 7z format features, and originality added support for data recovery(Standard 7z format does not support adding recovery information), you can be very Add convenience to recover information in a compressed file that can be easily restored when the data unfortunately damaged. 

7z is the new archive format, providing high compression ratio. 
The main features of 7z format: 
•Open architecture 
•High compression ratio 
•Strong AES-256 encryption 
•Ability of using any compression, conversion or encryption method 
•Supporting files with sizes up to 16000000000 GB 
•Unicode file names 
•Solid compressing 
•Archive headers compressing 

LZMA is default and general compression method of 7z format. The main features of LZMA method: 
•High compression ratio 
•Variable dictionary size (up to 4 GB) 
•Compressing speed: about 1 MB/s on 2 GHz CPU 
•Decompressing speed: about 10-20 MB/s on 2 GHz CPU 
•Small memory requirements for decompressing (depend from dictionary size) 
•Small code size for decompressing: about 5 KB 
•Supporting multi-threading and P4's hyper-threading

Release notes:
added support for arm64 architecture.