TAR.XZ is a TAR achieve that is compressed with XZ compression technique. TAR.XZ is also known as TXZ files. TAR files contain uncompressed files. TAR.XZ files use LZMA2 compression algorithm to compress the TAR files. TAR.XZ files are used in UNIX Operating Systems.
Tar is an archive type file format that is used in UNIX based Operating Systems. It contains file header. It is a packaging file that can integrate multiple files in uncompressed format. TAR files can be compressed using several compression techniques like GZ, GZIP, Z, 7Z, ZIP and LZO etc.