Aspose.Cells for SharePoint is a flexible solution for converting Excel documents into multiple document formats within Microsoft SharePoint applications. It lets you easily convert documents right from the SharePoint document library into popular formats like XLS, XLSX, CSV, HTML, ODS, PDF, XML, and TXT without using MS Excel for document generation. It is designed to be used with Windows SharePoint Services 3.0 (WSS) and MS Office SharePoint Server 2007 (MOSS) standard and enterprise editions.
QuantLib is a cross-platform, quantitative finance C++ library for modeling, pricing, trading, and risk management in real-life. It is also wrapped as Python/Ruby/Scheme modules. Extensions for Excel, R, and Mathematica are available. Other such extensions are under consideration. QuantLib offers tools that are useful both for practical implementation and for advanced modeling. It features market conventions, yield curve models, solvers, PDEs, Monte Carlo (low-discrepancy included), exotic options, VAR, and so on.