I received this file as an attachment from a yahoo group email that was sent out today. I didn't open it cause for one I don't the person who sent it and two cause I have never heard of a file with a .pps extension. Can anyone tell me what this file is and what it does and if I should be concerned about it? I have it temporarily deleted, cause I wanted to bounce it off you guys and didn't want to comletely delete it incase anyone needs me to send them the actual file, so, it is sitting in my inbox in the trash folder waiting 2 b deleted. This is the file that was sent to me:

Numbers.pps
.pps file