I need to understand a large Excel^® spreadsheet. Where do I start?
The Spreadsheet Analysis tool shows you the broad structure of the spreadsheet and how the various worksheets fit together.

I found two versions of a spreadsheet. How can I tell what the differences are?
The Spreadsheet Comparison tool tells precisely what changes have been made. Useful for version control.

I got a “circular reference” error message. Excel^®’s Circular Reference toolbar cannot find it. What is causing the error?
The Circularity Finder tool takes the guesswork out of one of the headaches in the development of large, complex spreadsheet models.

These 20 items look similar. How can I check all of their calculations quickly?
The Bookmark Comparison tool can check if similar items (e.g. depreciation of similar assets) have been modeled in the same way.

I need to change an unfamiliar spreadsheet. Will I introduce errors into the spreadsheet?
Use the Color Dependents tool to make sure changes to one part of the spreadsheet will not inadvertently affect another part.