Tool which extends Excel's search facilities.

Displays Excel formulae as mathematical equations.

Changes And Trends Software offers a product which allows you to see the important parts of your spreadsheets on a dashboard.

Converts a spreadsheet to an HTML page with formulas translated to javascript. Provides a FAQ, online ordering and company information.

Software to discover spreadsheet errors, help with auditing and understand complex models.

Encrypts spreadsheets allowing normal operations only for authorized users.

A security solution that encrypts all formulas, restricts user rights and removes hidden sensitive data from workbooks. In Vienna, Austria.

A business forecasting add-in for Microsoft Excel.

Proposes spreadsheets configured with interactive formulas in many different subject areas.

Produces DiffEngineX which compares Excel spreadsheets and highlights the differences with color. Options exist to hide matching rows revealing just the differing ones. Site includes news, screenshots, full features list, and trial version download.