https://twitter.com/ms_ocat. Diagnose Microsoft Office problems with this portable troubleshooter. Office Configuration Analyzer Tool (OffCAT) is a Microsoft tool which can tell you a great deal about your Office setup, quickly highlighting any problems or issues.The program is portable, so convenient to use-just unzip it and launch OffCAT.EXE.ttps://twitter.com/ms_ocat. Diagnose Microsoft Office problems with this portable troubleshooter. Office Configuration Analyzer Tool (OffCAT) is a Microsoft tool which can tell you a great deal about your Office setup, quickly highlighting any problems or issues.