The Vertex42™ Amortization Schedule spreadsheet creates a payment schedule for a fixed-rate loan, with optional extra payments.

Provides a basic set of spreadsheet functions for manipulating scientific measurements, tracking units of measure and significant figures.  Usage instructions on this page.

Obba provides a bridge from spreadsheets to Java classes. With Obba, you can easily build spreadsheet GUIs (Excel or OpenOffice) to Java code.

This extension generates a data input form for tables in calc, reproducing the Data - Form feature of Microsoft Office Excel.

Installation
Double-click on the extension file and follow the instructions.
After installation close both OpenOffice.org and the Quickstarter (the icon in the traybar), and start OpenOffice.org again.

.riess Date Browser is an Extension for OpenOffice.org / StarOffice and provides date browsing and date
picking functionality within OpenOffice.org.

This allows a comfortable way for looking up a date using a calendar view. A nifty tool for all users filling in
dates into documents often.

The Vertex42™ Mortgage Payment Calculator spreadsheet lets you make side-by-side comparisons of different monthly mortgage payments, including the effect of extra payments.
- Works with both US and Canadian mortgages (different compound periods)

This Debt Reduction spreadsheet helps you plan how to reduce credit card debt, auto loans, student loans, and other debts.

[fr] Convertit un document utilisant des codages anciens (vietnamiens et lao) vers le codage Unicode. La conversion se fait à la fois sur le texte et le nom des polices utilisées. Cela devrait fonctionner avec n'importe quel type de document, mais pour le moment seuls quelques exemplaires de documents texte, tableur et présentation ont été testés.

Slovak dictionary pack (spellcheck, hyphenation and thesaurus) based on project http://sk-spell.sk.cx/
Balík slovenských slovníkov (kontrola preklepov, delenie slov a synonymický slovník) z projektu http://sk-spell.sk.cx/

Easy save and print and/or mail of an odt/doc with data coming from a spreadsheet.

1. Function: picks up a list of data from a spreadsheet as if it was a database and, after have positioned the markers fields in a text document, automates the creation of files as doc, odt, pdf or html and the printing or sending mail.