The Mac templates are contained in a compressed HQX file, and the PC templates are contained in a compressed ZIP file. In order to open them, you will need to have a compression utility such as StuffIt Expander, available for free for both Mac and PC from www.stuffit.com. Another popular program for Windows is WinZIP, available from www.winzip.com.
Once you’ve opened a template, do not make any changes to the template itself (e.g., copying and pasting into a new page to save space, changing or deleting any of the crop marks, changing the page size, etc.). Our templates are created to maximize our in-house productivity. If you alter the template pages, we will have to reformat your job to fit into the original templates.
For maximum compatibility, our templates are saved back to the oldest version we support. You should save your documents in the version you’re actually using. For example, if you are working in Illustrator CS, do not save your layout file back to Illustrator 8; save it as Illustrator CS.