AutoSaveXL is an add-in for MS Excel that saves the files you are working with automatically on specified time intervals. Unlike default add-in AutoSaveXL doesn't ask questions, can create as many backup copies as you wish and has two modes of operation -- always updates real file or creates "snapshots" in different files. With AutoSaveXL recovering an old edition of the file will not be a nightmare anymore.
ExcelEverywhere for ASP & ASP.NET
Solve your problem using Microsoft Excel, and let ExcelEverywhere generate an ASP or ASP.NET-page. Looks like and calculates like the spreadsheet. Supports 190 Excel-functions. Code-behind module for backend-integration. No Excel needed on server!
SpreadCalc - for those who use Excel seldom and don't need all its complicated features. A handy utility with most often used features of Excel but for less money - for you.
Excel MySQL Import, Export & Convert
Connect Excel to your MySQL database. This Excel Add-in allows you to import and export tables to (and from) MySQL while you work in Excel. No SQL query knowledge needed.
Portfolio Performance Monitoring
The Portfolio Performance Monitoring model enables the ongoing monitoring and periodic valuation of a portfolio of financial investments. Amount and timing of investment and divestment transactions are taken into account in performance calculations.
ADX Toys for Microsoft Excel
Is a COM add-in that adds several useful features to Microsoft Excel (see screenshot). The add-in is based on Add-in Express technology (http://www.afalinasoft.com/). ADX Toys for Microsoft Excel supports MS Excel 2000 and higher.