There is such site:
http://extensions.libreoffice.org/extension-center
( http://extensions.libreoffice.org/
http://www.libreoffice.org/features/extensions/ )
There is such site:
http://extensions.libreoffice.org/extension-center
( http://extensions.libreoffice.org/
http://www.libreoffice.org/features/extensions/ )
Tibor Kovács Budapest, Hungary LO4.4.7, and LO5.1.1 Portable version; AOO4.1.2 on Win7×64Prof_SP1