2) Go to File > Export > For Production > Extended Gerber (RS-274X)
3) Select a folder to save the Gerber Files
4) Wait for the Exporting process to complete.
5) Once the exporting is done all the files will be saved at your desired file location.
6) Select the file and compress into .Zip file and then you are ready to upload the file on Lion Circuits.
Here is the step by step Order Guide