If a course site includes document files that you are unable to open, you may need to download required plugins. Here are links to free downloads of the latest versions for the formats most often used.

	Adobe Acrobat Reader for viewing PDF files
	Adobe Shockwave Player
	ODF Plugin The Sun ODF Plugin for Microsoft Office gives users of Microsoft Office Word, Excel and PowerPoint the ability to read, edit and save to the ISO-standard Open Document Format (ODF).