By default Calc ships with a solver engine for linear programming only. This allows the optimization of models to a certain degree.
However, if the formulas or constraints become more complex, nonlinear programming is required. That missing gap is now filled by the Solver for Nonlinear Programming extension.

Currently it incorporates two Evolutionary Algorithms which are able to handle floating point and integer variables as well as nonlinear constraints. For more information about their usage and restrictions, please refer to the documentation.

This barcode extension allows you to harness the speed of Calc and generate thousands of individual barcodes. The extension adds the function "ConvertStringToI2OF5()." Calling that function with a string argument will return a reformatted string that, when changed to the included barcode font, will produce a scannable barcode.

Extension for Calc. It can cast lots. It is in the Tools-->Add-ons menu in OpenOffice.org Calc.
For example, you can use for:

• selection of soldiers
• redistribution of fish among fishermen
• replacement for alphabetical order
• replacement for election and competition

This barcode extension allows you to harness the speed of Calc and generate thousands of individual barcodes. The extension adds the function "ConvertStringToCode128()." Calling that function with a string argument will return a reformatted string that, when changed to the included barcode font, will produce a scannable barcode.

Die kombinierte Rechtschreib- und Grammatikprüfung für die Textverarbeitung Writer und die Wortprüfung für die Tabellenkalkulation Calc und die Präsentationssoftware Impress mit zusätzlichem Nachschlagewerk „Duden – Die deutsche Rechtschreibung”.

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Download the free TeamDrive software here: http://www.teamdrive.net/en/download

Windows-1251 to Unicode Converter for Mongolian Cyrillic. It works in Writer, Calc, Impress and Draw.

Simply apply a border to a multiple selection.
The function is very similar to that included in OOo, wich doesn't apply to a multiple selection (but with only three option).

The Vertex42™ Gantt Chart template lets you easily create a project timeline. It uses conditional formatting to create the gantt chart based on the dates entered in the spreadsheet.

Sparklines are small (word-size) charts that illustrate trends and variations.
And they are now ease to create from OpenOffice.org Calc using EuroOffice Sparkline!