cab The cabinet file format, shortened CAB, is an archive file format that was developed for the Microsoft Windows operating system. The format supports the lossless family of data compression algorithms as well as embedded digital certificates that facilitate data integrity. Archives created using the CAB format have the filename extension .cab and are recognized by the operating system through the identifying 4 bytes in the header. CAB enjoys support by other Microsoft technologies such as the Setup APIs, Windows Installer and others. In fact, some earlier integrated development environments developed by Microsoft could create setup files that were organized as CAB files.
txz The TXZ file extension is typically found in archive files which are created using a combination of TAR and the XZ utilities. TXZ files contain multiple files which are first archived using Tar and later compressed using the technology of XZ compression. TXZ files are known to be smaller in comparison to TGZ files. From a more basic perspective, XZ utilities compress TAR archive files just like how GZ utilities compress various TAR archives, the only difference being in the compression ratios and the resulting file sizes after compression.