To open PDF files, you need to download the free Adobe PDF Reader application IF you do not have it already installed on your computer. (It is recommended that the latest version of the Adobe Reader be downloaded.) Step-by-step instructions of how to do this is shown in the first video below.
Once Adobe Reader is installed on your computer, downloaded PDF files will open successfully.
Downloaded "PDF Form" versions allow you to type information into the fields. However, when you download any of the form-fill PDFs below, you must first save it to your computer and then open it from the saved location. The second video below provides step-by-step instructions on how to do this. (Failure to do this will prevent you from saving any information typed into the form when you simply download and open it. It will only save the black form.)
(PDF files can be converted to a WORD Document format; however, this service is available through Adobe.com and is subscription-fee based.)