Saved presentation as .zip file or a folder. Presentation gone?

Hello, I really need some help. Yesterday, I worked with a presentation which took about 10 hours, I'm not really that experienced with computers, but I think I saved it as a .zip file or simply as a folder. I cannot find the presentation and open it anymore, and the .zip file and the folder simply contains:
All the images i used in the presentation.
A folder named "Quicklook".
A folder named "Thumbnails", with all the thumbnails of each slide, but they are too small to read, and it doesn't help to zoom in, too bad quality.
The frontpage of my presentation.
A file named "Index", not sure about the filetype.
I really need help on how to fix this, if it is possible. I don't understand where the main file for the presentation is, it seems like this folder only contains all the materials and parts for the presentation.
Any ideas?
Thanks in advance.

Welcome to the discussions, Maryam222.
Keynote "files" are actually .zip files or folders with the difference being that their name has .key on the end. As long as you haven't moved any of the items/objects out of OR to different positions in that folder, you should be able to...
1) Select the icon that you think is your presentation (not the stuff on the inside, the folder that it's all in, select the folder)
2) Do "command-I" to "Get Info" for that icon.
3) In the "Name & Extension" area, you should see the name of the folder
4) I'm guessing that your problem is that it doesn't have .key at the end. So, add .key to the end of the filename (If it has .zip at the end, change .zip to .key)
5) OSX will tell you something about changing the file, click the button to confirm the change
Now, it should open in Keynote when you double click on it. If not, post back to report what you're seeing.

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