Planatech Solutions

Founded in 1996, Planatech Solutions is a privately owned company, specializing in cross-language & cross-platform interfaces. Based on nearly 20 years experience in the Financial Markets, Planatech has produced both commercial and bespoke software. The company's most successful commercial product, XLL Plus, first went to market in 1998, and simplifies the process of converting complex mathematical models written in C/C++ to instantly usable add-in functions in Excel. Clients include investment banks, hedge funds, energy industries, universities.

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Contact Information


Grosvenor Gardens House
35/37 Grosvenor Gardens
United Kingdom


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News Headlines

XLL Plus adds Complex Handle Types
Object handles can now be complex types and can include namespaces and templates.
XLL Plus improves Compatibility
New edition now works with Visual Studio 2012.
XLL Plus for Visual Studio adds 64 bit support
Version 7.0 also features full support for Office Ribbons and Excel 2010 asynchronous execution features.
XLL Plus for Visual Studio 2010 released
New edition adds compatibility with the latest version of Microsoft Visual Studio.
XLL Plus adds hidden regions
Version 6.3 also features XLL wrapper libraries, improves asynchronous functions and adds Portuguese language support.
XLL Plus for Visual Studio updated
Version 6.2.4 adds support for Windows 7 (32-bit and 64-bit) and Windows Vista (64-bit).