The Microsoft Office Configuration Analyzer Tool (OffCAT) provides a detailed report of your installed Office programs. This report includes many parameters about your Office program configuration. It also highlights known problems that are found when OffCAT scans your computer.
For any problems that are listed in the report, you are provided a link to a public-facing article (usually a Microsoft Knowledge Base article) about each problem so that you can read about possible fixes. If you are a Helpdesk professional, you can also save the report to a file so that it can be viewed in the Office Configuration Analyzer Tool on another client on which the tool is installed.
This tool began as the Outlook Configuration Analyzer Tool (OCAT ) which provided a quick and easy method to analyze your Microsoft Office Outlook profile for common configurations that may cause problems in Outlook. Even though it is now called OffCAT, analyzing your Outlook configuration is still a very large part of the tool and is a must have when you want to identify possible issues with Outlook proactively.