Calc2LaTeX is an OpenOffice.org Calc (Spreadsheet) macro for converting tables. It makes making tables on LaTeX very easy.

This extension will allow you to select a region in a spreadsheet, and generate a LaTeX tabular format of the spreadsheet.

Supports:

Embedding the tabular environment in a table float
Caption on top or bottom
Label
Placement options [htbp], etc.

This extention is strong recommended for all calc users, it allow remove/insert column easier eventhough selected range is merged.
It work on new openoffice.org calc. Tested version included 2.3.1 and 3.0.
Features:

1. Insert new toolbar which allow user add/remove columns or rows.
2. Allow user to perform mass vertical or horizontal merge easily for range of cell.

CalcLink: Bringing the Power of Mathematica to OpenOffice Calc spreadsheets!

With CalcLink you can use the power and sophistication of Mathematica in Calc, and you can use the familiarity, convenience, and ease-of-use of Calc from Mathematica!

The entire breadth of all Mathematica functions becomes easily accessible from Calc, enhancing the Calc spreadsheet environment with symbolic computation, optimization methods, modern statistical functions, data-mining, lightning-fast giga-numerics, linear algebra functions, and state-of-the art visualization!

This template offers you an easy customizable calendar for Calc. Just Load, print and go!

To download: Click: "Browse source code" and then download.....
(by the way, already downloaded more than 17.000 times... :-) )

Canadian English (en_CA) spell checking, hyphenation and thesaurus.

[fr] GeOOo est une extension de cartographie thématique qui utilise les liaisons dynamiques entre des "objets polygones" et une "base de données". Elle permet de produire une carte thématique en associant des données géo référencées via les modules de dessin, tableur et base de données d' OpenOffice

Separació de mots per al català basada en patrons de TeX. Aquest diccionari parteix bé les eles geminades, però la partició s'ha d'activar des de la pestanya Flux de text de la finestra de format del paràgraf. Si feu servir l'altre mètode, l'entrada del menú Eines/Llengua/Partició de mots, les eles geminades no queden ben partides.

Allows to change the picture of an existing image in a document. It mimics a function of MS Word 2007 which is only available when working with docx documents.
http://www.youtube.com/watch?v=Qzryfx2GveY
http://www.oooforum.org/forum/viewtopic.phtml?t=91059&highlight=

Additional instructions

La macro Chiffres en lettres, pour OOo 3.x, Calc & Writer, permet la conversion de valeurs financières en textes français en tenant compte des spécifications locales (quatre-vingt-dix ou nonante, par exemple).

This package contains Romanian thesaurus, spelling, and hyphenation dictionaries (ro-RO locales). The dictionaries implement the orthographic rules in use in Romania before 1993 ("î din i").

Pachetul implementează ortografia clasică cu î din i. Dicţionarele contemporane cu â din a pot fi găsite la: http://extensions.services.openoffice.org/project/dictionaries-ro-contem...