Files are in the Adobe PDF format and require a copy of Abobe's Acrobat Reader (free download at www.adobe.com) to view them. Each month is a separate file and is approximately 2-3M in size. Simply clicking on a link will open the file in the Acrobat reader and later you can  save the file to your hard drive. Or you can initially use the "save link as" or "save target as" option to save the file to your hard drive then view it later.