How to extract data from keynote (.key) files?

Hi,

I'm using keynote '09 [version 5.0.1 (769)] on my mac machine, to open a keynote file which I received from my client. Now I need to extract some image media and text data in image format from this keynot file to use in development.

But being a Windows user, i've not much idea about extracting data from keynot file on mac machine. I tried basic options (like you do in windows) exporting content in image format from file menu (though keynote has no such options except for slides), or by changing extension from .key file to .zip file and then extyracting .zip file.

But none of above helped my cause. Changing extension from .key to .zip and then extracting, fetching many element which I even do not have in my .key file such as some .tiff file (like an audio icon), a .mov file, an .apxl extension file and some more .tiff format file.

Can anyone please help me on this?

Many Thasnk in advance!