What is a OXT File Type?
To install an OXT file, select Extension Manager from the Tools menu, then click ", Add ", and select the extension in the file browser. If you have Apache OpenOffice 2.2 or higher, you can install extensions in double- @ by simply clicking on the OXT file.
The OXT files can be developed for Apache OpenOffice suite or individual programs such as Writer, Base, Calc, Chart, Draw, Impress and Math. It can be included in the program or developed by users.
You can download extensions to the Apache OpenOffice Repository.