Business Valuation Model Excel v.2.1.2 The Business Valuation Model Excel is an 'out-of-the-box' professional valuation model developed by a CFA charterholder.It supports both major releases of Microsoft Excel, 20. (yX) for Excel for Mac OS v.2.2 A knowledge mining tool that works with data stored in Microsoft Excel for building predictive and descriptive models from this data autonomously and easily.