The attachment I'm trying to open has a.PPS file extention, but .PPS is not
among the file types listed in the Folder Options.
To open any file, whether you get it as an attachment or any other
way, you need to have the appropriate program installed. Computers
don't come with every possible program installed, and none of can open
every possible file we receive unless we are willing to install the
appropriate software to do so.
A .pps file is a PowerPoint presentation. To open a PowerPoint
presentation, you need to have PowerPoint (or some compatible program)
installed. Since .pps is not listed in folder options, it would appear
that you do not have such a program installed.
You can buy PowerPoint, either by itself or as part of Microsoft
Office. Alternatively you can use the less expensive WordPerfect
Office, or the freeware OpenOffice. The best alternative for you might
be to download the free Microsoft PowerPoint Viewer at
http://www.microsoft.com/downloads/...40-14E1-467D-8DCA-19D2A8FD7485&displaylang=en
or
http://tinyurl.com/u5bsa
The PowerPoint Viewer will let you view the file you were sent, but
not modify it, or create new PowerPoint presentations of your own.
I should also caution you that opening attachments like this is very
risky. They can contain macro viruses. You often see advice not to
open attachments from people you don't know. I think that that's one
of the most dangerous pieces of advice you see around, because it
implies that it's safe to do the opposite--open attachments from
friends and relatives. But many viruses spread by sending themselves
to everyone in the infected party's address book, so attachments
received from friends are perhaps the *most* risky to open.
Even if the attachment legitimately comes from a friend, it can
contain a virus. I'm not suggesting that a friend is likely to send
you a virus on purpose, but if the friend is infected without
realizing it, any attachment he sends you is likely to also be
infected.