Provides several VBA add-ins in the areas of finance and statistics. The source code is unprotected for educational purposes.

Displays Excel formulae as mathematical equations.

The Excel Auditor, tool to control, audit, and document workbooks. BYG utilities lite, shareware, Goldmine, free technique demonstration files, bugs. (BYG stands for Big Yellow Gorilla.)

Proposes a tool for difficult data manipulations.

Adds a menu item to Excel through which SQL can be submitted to Oracle. Full featured and allows bulk inserts/updates, PL/SQL, VBA.

Proposes applications for personal finances, golf, scheduling, tax calculations and task management.

Freeware which can be used to connect to and import from ODBC compliant databases.

Spreadsheet mapping software that allows you to chart Excel data on a map.

Provides Monte Carlo simulation software for the risk analysis of decisions. Their license states users must email SimulAr with models developed using their tool.

Set of workbooks for statistical analysis of data. All working and code is visible. Freeware version available.