Visioo-writer supports document formats such as KWord, and this, an open-source word processor written in C++?
AbiWord AbiWord ( ) is a free and open-source software word processor written in C++. Since version 3 it is based on GTK+ 3. The name "AbiWord" is derived from the root of the Spanish word ""abierto"", meaning "open".
Apache POI Apache POI, a project run by the Apache Software Foundation, and previously a sub-project of the Jakarta Project, provides pure Java libraries for reading and writing files in Microsoft Office formats, such as Word, PowerPoint and Excel.