If you are a teacher using Microsoft Office for Windows to produce content for Moodle, then you might be interested in Microsoft’s latest product for Moodle. They’ve produced an Office Add-in that allows you to open Word, Excel and Powerpoint documents directly from Moodle, and also to save your documents straight back into your course files area – bypassing the Moodle web interface completely. (Note that such Add-ins are only compatible with Office on Windows, not the Mac OS X version).
http://www.educationlabs.com/projects/officeaddinformoodle/Pages/default.aspx