Robry-Calc is a dynamic, versatile spreadsheet capable of organizing and processing vast amounts of data into a variety of useful reports and charts. Built around the core principles of accuracy, speed and flexibility, Robry-Calc can help you to achieve your data processing and analysis goals.

Robry-Calc is a distribution of GS-Calc (a line of spreadsheets developed by Citadel5 - a European software company), which was relied upon for the initial development and subsequent expansion of Robry825 modeling.

While the mainstream GS-Calc distribution assumes more frequent version updates, the Robry-Calc distribution, launched in 2010, features a more conservative approach - the largest and most complex of the hundreds of Robry825 models integrated into the extensive stress-testing and validation process of Robry-Calc help to reduce the chances of embedded errors surviving the development process.

Main Robry-Calc features include:

• Over 12 million rows x 4,096 columns.
• ODF spreadsheet format as the default file format.
• 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, integer and quadratic programming.
• Array formulas and 3D-formulas; UDF functions accepting and returning arrays.
• Pivot tables implemented as array formulas.
• Workbooks containing any number of hierarchically organized worksheets.
• Multi-pane worksheet windows with up to 100 freely sync views; advanced sync options.
• 2D/XY and 3D charts capable of handling very large amounts of data.
• Strong password protection and encryption; password-protecting workbook structures and individual cells.
• Dual COM interfaces enabling you to use GS-Calc functionality in your own applications.
• Standard editing and formatting tools and options; optional Excel-, OpenFormula- and GoogleDocs-compatible formula syntax, predefined numeric styles and user-defined styles.
• Clean installation (no registry entries are required); optional fully-portable setup.
• Saving workbooks to PDF: saving entire workbooks (with the worksheet tree structure preserved), single worksheets, ranges and single charts; very small output files.
• Importing, exporting and editing text, dBase III-IV, Clipper, FoxPro 2.x and Excel 2003 XML files.

[+] Use over 300 built-in formulas to calculate anything from home/business accounts to advanced data models.	[+] Analyze your data using very fast pivot table formulas, capable of handling up to 12 millions of rows and 4096 columns.
[+] Browse and edit your data in configurable panes featuring various viewing/scrolling synchronization options.	[+] Quickly format your workbooks using configurable format dialog boxes and custom style lists.
[+] Easily create sophisticated 2D- and 3D-chart types capable of presenting a vast number of data points.	[+] Safely and quickly manage workbooks files of any size: from a few KB to hundreds of MB.