Most of the files available for download on this site are in Adobe's Portable Document Format (.pdf). As long as you have Acrobat Reader installed on your computer, you will be able to view this type of file. Click the graphic on the right to download the free software.

Zip files are "archives" used for distributing and storing files. They can contain one or more files. The Zip file is also compressed, which makes it smaller and faster to download. To un-compress and extract these files for viewing, you need to use WinZip, which you can download for free by clicking the graphic to the right.