Excel Spreadsheet Auditor is a Jabsoft's Excel add-in which enables you to view formulas in a different, friendlier manner. Excel Spreadsheet Auditor shows all origin links which may exist between formulas of a selected range. also it shows any and all dependence links which may exist between formulas of a selected range.

The license of this software is Free Trial Software, the price is $99.95, you can free download and get a free trial.