Apache OpenOffice

alternative for Office productivity tools: Apache OpenOffice - formerly known as OpenOffice.org - is an open-source office productivity software suite containing word processor, spreadsheet, presentation, graphics, formula editor, and database management applications. OpenOffice is available in many languages, works on all common computers, stores data in ODF - the international open standard format - and is able to read and write files in other formats, included the format used by the most common office suite packages. OpenOffice is also able to export files in PDF format. OpenOffice has supported extensions, in a similar manner to Mozilla Firefox, making easy to add new functionality to an existing OpenOffice installation.

Features :
Cross platform (Windows, Linux, Mac OS X)
170+ Languages
Extensions and Templates available
Commercial support available
New Sidebar
Interoperability Improvements for Text Documents, Spreadhseet Documents, Presentation Documents and OOXML file format in general
DrawObject Improvements/Enhancements
New Color Palette
New Gradients
New Gallery Themes and Gallery enhancements
Refined the Selection Handles User Interface
Refined Selection Visualization
Better Print Preview
Enhanced conversion to Bitmap Graphics
Enhanced Copy/Paste
Enhanced Drag&Drop
Adapt LineStart/End to LineWidth
SVG Export enhancements
SVG/Metafile Break improvement
SVG Import improvements
Picture Crop mode offers preview
Unified visualization of ColorPalette popup
Transparency support for pixel formats (PNG)
Connectors support rotation
Corrected Hatch fill style visualization
Better gradient support in metafiles
Calc and Chart Improvements/Enhancements
Support relative Pie Chart Height
New Functions: AVERAGEIFS, COUNTIFS, SUMIFS, XOR, LEFTB, RIGHTB, LENB, MIDB and RAND (reimplemented to use the Mersenne-Twister algorithm)
Extensions Improvements/Enhancement
New Toolbar management
Unified menu API
Performance Improvements/Enhancements
Many resource leaks were fixed
Speedup of Graphic Rendering
Additional Language Support
Changes that Impact Backwards Compatibility
Module binfilter removed (legacy StarOffice file formats (.sdw, .sdc, .sdd, etc.)
Python support updated
Support for system C++ STL

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