are in a Microsoft's PowerPoint format. You can use that software
free within the Faculty and you can purchase a license to use it
elsewhere. You could also use some free software: Star Office from Sun
Microsystems or
PowerPoint Viewer from Microsoft. (Both of them can show you
something that resembles the lecture slides. Star Office will also
show something that looks like the notes.)
Files with names ending with
.pdf ()
are in Adobe®'s portable document
format™. Those files can be displayed with the
Adobe Acrobat
Reader or converted to HTML using tools from Adobe.
Files with names ending with
.ps ()
are in Adobe®'s PostScript™
format. You can print those files directly within the Faculty and you
can use Ghostscript, Ghostview, or GSview to view those files. More
information about those programs is available from the
homepage for Ghostscript.
Files with names ending with
.html,
.shtml, or
.htm
()
are in XHTML (or HTML)
and should be readable in any browser available since 2002.