GS-Calc is a spreadsheet application that will help you to organize your data, track your expenses and incomes, create reports, handle large text files and databases.
Its main features include: 12 million rows x 4,096 columns; a unique feature of organizing worksheets in a tree form; efficient memory usage to quickly load and save the largest files; fast pivot tables; optimization and other advanced statistical functions; using up to 64 processor cores during calculations; can use functions written by users in C/C++ as plain DLL libraries; a unique feature of working in up to 100 synchronized panes to boost your productivity; GS-Calc can be installed on any portable device and used without performing any registry modifications (save the uninstall key); two optional native file formats: Open Document .ods spreadsheet format and exceptionally fast and compact binary format; extensive match/look-up functionality for more precise and fastest possible searching; regular expressions; support for JScripts & VBScripts; organizing scripts hierarchically in trees; 2D/XY and 3D charts capable of handling very large amounts of data; saving workbooks to PDF: saving entire workbooks, single worksheets, ranges or single charts to compact PDF files; a complete set of functions to import, export and convert data in the text, dBase, Clipper, Fox Pro, Excel XML file formats; around 300 built-in formulas including specialized numerical functions: matrix decompositions; linear equation sets with improving iterations; least squares (weighted, constrained), regression with orthogonal polynomials; time series analysis; minimization; linear programming, integer programming and quadratic programming. Both 64- and 32-bit versions are available.
