This file type uses label CAB and its extension .cab means Cabinet. It is file format developed by Microsoft and it serves to archive data. Its main advantage is compression. Files saved in this file format can use one of three different compression methods. We can find these files in products by Microsoft. It is used in installation packages, driver installers and also for extension installers for IE.
There are many programs able to unpack these files. For example there is application 7 – Zip, which is all – purpose. Nevertheless it can only unpack them. Next program is PeaZip, which can view and unpack them. For beginning developers there is paid Visual Studio, but if you are student you´ve got this program for free. To open them, we prefer 7 – Zip, which is available also for free.