A PDF (Portable Document Format) file can be opened using the free Adobe Reader application.
Certain versions of Internet Explorer and Netscape Navigator don’t allow PDF files to display in your browser window. To view them, move the mouse cursor over the PDF link and right click the mouse. Select “Save target as”. Save the PDF file to an appropriate location and then open it from the saved location.
DOC (Word) documents
DOC (Word) files are editable word processor documents. If you don’t have access to the Microsoft Word application then you can use the free Libre Office or Microsoft Word Viewer tools to open these files.
XLS (Excel) spreadsheets
XLS (Excel) documents are spreadsheets, often containing data and statistics. If you don’t have access to the Microsoft Excel application then you can use the free Libre Office or Microsoft Excel Viewer tools to open these files.
PPT (Powerpoint) presentations
MP3 files are used for audio content. MP3 files can be played with most audio software such as VLC, Windows Media Player or iTunes. You can also transfer and listen to MP3 files on most portable audio players, and many smartphones.
Zip files are used to compress large (or sometimes multiple) files into a single, smaller, downloadable file. Most desktop operating systems (Windows XP, Vista and 7 / Mac OSX) include the ability to open and read the contents of zip files.
If you are using an older version of Windows, you can use the free 7-Zip tool to open these files.