Help with computer pictures?

Notepads,digital pictures and videos on my computer are all messed up.PLEASE HELP ME!!!!!!!!?

• For anyone who cares enough to answer these questions in detail....I would gladly pay you if I could...This is really driving me nuts and I have NO idea whatsoever how to fix it. This is gonna be long... I am operating Windows XP I bought Roxio easy CD & DVD burning software at the store....(easy my @ss...No idea how to work it...There's about 30 bucks down the toilet) and I installed it.Sometime after that,I noticed that all of the Rich Text Documents that I have on my computer end with ".rtf" whereas before,there were no letters (like .txt or .rtf,etc) after the labels I gave them. Also,I have a lot of my pictures and videos on an external Hard drive and I emptied one my memory cards onto the EHD and I noticed that there was ".gif,.AVI,.jpg,etc. after the picture/video number and that was not there before.Not only that,I am also unable to label my digital pictures and videos and I have NO idea why.This is just frustrating me to the point where I want to throw this computer.I REALLY need some help and I am so computer illiterate.I don't understand compuer talk very well.Could this have anything to do with the Roxio I installed? Then I uninstalled it and all this "dot" stuff was still there.PLEASE HELP ME get things back to the way they were.How did it happen and how can I fix it?????????????????????

• Answer:

  Calm down. It's a file extension. For example photo1.jpg < I'm assuming that your question is about the '.jpg' thing, right? If it shows, that means your folder settings has been changed from "hide extension" to "show extension". Follow these simple steps : In Windows XP goto my computer. On top of the window click Tools then Folder Options. Click View tab and tick the box with "Hide extensions for known file types". Click Apply and OK. In Windows Vista/Windows 7 click Start menu. On search box there type "Folder Options", click on Folder Options in results. Click View tab and tick the box with "Hide extensions for known file types". Click Apply and OK. OR Click Start menu, goto Control Panel. Look for Folder Options. Click View tab and tick the box with "Hide extensions for known file types". Click Apply and OK. Showing or hiding the extensions won't do any harm actually.