Please send us the excel template along with your sample project on which you are facing the formatting problem.Also, GridWeb is compatible with Mozila FireFox. You can have formatting in the GribWeb.
Please follow the links below for more details of GridWeb:
Also, there is no restricted functionality of trial version and you can use all the features of GridWeb component. Can you please send the excel template file along with sample project in which you are facing the issue of clicking on component after loading it?