Help/FAQ
The place to find answers to your questions about using the site.
Help with files
Opening PDF files
Most GNU/Linux distributions come with a PDF viewer installed. If you're using
GNOME you probably have Evince installed, if you use KDE then you'd have Okular or KPDF.
I'm fairly sure Mac OS X already comes with a PDF viewer as standard.
If you're using Windows you'll need to install either the free/open source Sumatra PDF reader, or use Adobe's proprietary Adobe Reader software.
Wikipedia has a list of PDF software.
Opening Tarballs
Any "zipped" files on the site are likely to be tar files compressed with either bzip(2) or gzip.
GNU/Linux users will be able to extract these using:
$ tar -zxvf </path/to/file.tar.gz>
or
$ tar -jxvf </path/to/file.tar.bz(2)>
or by using a graphical manager (file-roller if you're on a GNOME desktop).
Mac OS X has the Archive Utility program which can open these files.
Windows users may need to install the free/open source 7zip program.
Wikipedia has a comparison of file archivers.

