The Free and Open Productivity Suite
Released: Apache OpenOffice 4.1.15

Spreadsheet Project

Project Lead: Developer mailing list.

This is the home page for the Apache OpenOffice spreadsheet application, named Calc. A product description (including screenshot) can be found here. Note that the Chart module has its own page.

User Information

If you're looking for user information about Calc, try these links:

Submit an Issue

If you found a bug or want to suggest an enhancement, find the information about submitting issues in the QA project.

Develop Extensions

In addition to general extension development, Calc supports the use of Add-In components to extend the set of functions that can be used in cell formulas. Add-Ins can easily be created using the Add-In Wizard of the NetBeans integration. Besides that, some articles are available:

Development Documentation

Current Development

To see what the Calc team at Sun is doing, look for the weekly update entries in the GullFOSS blog.

Currently, the major topics of Calc development are:

To-Do List

These are some areas where help would be useful. Well thought-out patches are welcome, but please file your Joint Copyright Assignment (JCA) first, see How to submit code to

Possible extensions

Other features

IssueZilla queries

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