Trimill TriLookup 2.22

TriLookup is an add-in for Microsoft® Excel for Windows versions 97, 2000, 2002 (XP), 2003, and 2007 and Excel for Macintosh versions 98, 2001, X and 2008. When installed, TriLookup adds eleven powerful lookup and interpolation worksheet functions to Excel, which offer greatly enhanced functionality compared to Excel's built-in lookup functions. You can use them to perform simple table lookup, as well as, interpolation and extrapolation from tables with one, two or three independent variables.