Because of the size of the files for our leader's guides and many of our supplemental resources, they are often compressed into a zip file format. Once you download your leader's guide, the first thing you would need to do is "unzip" the file so you can view it. You can do this by right-clicking the file and choosing "Extract All."
If you don't see that option, download a free trial of WinZip here: http://www.winzip.com/win/en/index.htm
From the "Extract Compressed (Zipped) Folders" window, select the "Browse" button to choose a location to save the extracted files, then click the "Extract" button at the bottom.
Once you've extracted the files, you will need a PDF viewer. If you don't already have one available on your computer, or if the one you have isn't working properly for printing your leader's guide, you can download the free Adobe PDF reader here: http://www.acrobat-reader.net/.