xlPrecision

This tool is a plug-in to Excel and provides much higher precision than the Excel native precision.

xlPrecision is an add-in for Microsoft Excel that provides more precise results from mathematical formulas. While Excel is able to provide 15 digits of precision, with this plug-in, you will be able to generate up to 32,767 "significant digits" of precision. Thus the range of numbers you can handle becomes much larger. The smallest number as well as the largest number can be much smaller and bigger respectively. xlPrecision, allows you to use numbers with over 106 times as many digits as Excel allows. Similarly, the smaller numbers could be 106 times smaller than what is possible originally with Excel. This tool also eliminates the notorious binary conversion errors, reported often in Excel. There are other enhancements available with this tool. One of these is the “excluder” function. This lets you save a lot of time when Excel calculates large amounts of data.

Sorting of data is made more versatile by this plug-in. Fractional data can be managed with the fractional data reducer component of the tool. Enhanced search functions are also available. If you want, you are able to use the precision of the xIPrecision from your programs. Excel VBA macros or VB projects can use the functionality of this tool. In fact any program that is able to call an ActiveX (OLE) server can use these functions. This is a good product. It has many useful features. If you were looking for a product like this, this is one you could try out.

xlPrecision is an Add-In for Microsoft Excel that provides vastly more precise results from mathematical formulas than Excel provides on its own. xlPrecision makes your calculation results up to 2,183.47 times more precise by providing up to 32,767 "significant digits" of precision, compared to only 15 with Excel alone.
xlPrecision also empowers you to use vastly larger (and vastly smaller) numbers than Excel allows on its own. With xlPrecision, you can use gigantic numbers with over 106 TIMES as many digits as Excel allows, as well as extremely tiny numbers with over 106 times as many zeroes to the right of the decimal.
xlPrecision also eliminates the insidious binary conversion errors that plague spreadsheet programs.
Finally, xlPrecision offers many additional features that take you beyond Excel's capabilities in other ways. Save valuable time with xlPrecision's powerful Excluder functions. View your sorted data at a glance with the exceptional sorting function. Take control of your fractional data with the versatile fraction reducer.
If you're a programmer, you can even use xlPrecision in your programming code, such as Excel VBA macros, Visual Basic projects, or from any other code that can call an ActiveX (OLE) server.