Stubbornly, OpenOffice.org continues to ship with only a handful of templates. Despite the efforts of several sub-projects and individuals to change the situation, the standard OpenOffice.org download includes only a couple of slide show presentations and a few templates to accompany the wizards available in the file menu. This lack of templates is a serious handicap for many users, and often leaves a poor impression on new users who are accustomed to the selection of templates found in other office suites.
Fortunately, an hour on the Internet can net you hundreds of templates. Depending on the templates, you can install some as a package via Tools -> Extension Manage, and some individually by downloading the file and placing it in the ~/.openoffice.org2/user/template directory. To use a template, go to File -> New -> Templates and Documents, and scan.
Below are some of the most useful sources for templates. The content of these sources overlap to a degree, and the quality of individual templates varies in all of them. Still, between these sources, you may be able to find what you need without taking the trouble to design your own template.
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