Zstandard
From Just Solve the File Format Problem
				
								
				
				
																
				
				
								
				Zstandard, or Zstd, is a general-purpose compression algorithm and file format. It is designed to have a good balance between compression ratio, compression speed, and decompression speed.
Identification
For at least some versions of Zstd format, files begin with signature bytes 25 b5 2f fd.
Software
-  Zstandard → zstd,unzstd,zstdcat

