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Products
SPIDER has developed a number of innovative, high-quality Excel add-ins. Click on a link below to learn more about our offerings.
Our Excel add-ins are available in two editions: professional and freeware (function-restricted). The download process, installation program and the documentation of both editions are the same, but the professional-only functions are locked and unavailable to freeware users. To unlock those functions, please purchase the professional edition and we will send you the product license key that unlocks those functions.
NumXL
NumXL is an econometric and time series analysis Excel Add-in. With NumXL, you can conduct your own time series analysis, diagnose a model’s residuals and make forecasts all in Microsoft Excel and using only NumXL Add in. 
CalendarXL (Coming Soon)
CalendarXL is an ideal compliment to NumXL and financial time series analysis. It provides advanced Date & Calendar calculation functions within Microsoft Excel making it easy to to examine past or predict future holidays, events and economic announcements. Calendar XL can also calculate working days in a holding period, generate a custom series of dates, and much much more.
