Hi. Is anybody in knowledge how I can import/transfer iWeb data (homepage) from my iMac to my Mac Book

I have created my websites (private & company) with iWeb on my iMac, since a few months I have a Mac Book and now I want to transfer my iWeb data to my Mac Book. I've tried to find the data file but couldn't. I've tried to copy the whole program but it doesn't work.

Is anybody knowing how to tranfer this data?