I am trying to upload an excel sheet (.xlsx) with 9 columns and 140 rows. 

Whenever I browse on my computer for the file, then select it and click "create", I only get to this URL  https://creator.zoho.com/importData.do and it stops doing anything. It's just a blank page.

Is there anything specific that I need to do with the excel sheet? Is there a limit of character I can use in the cells?

I am looking to use Zoho for my new product launch but I need it to work properly.

Thanks for the feedback.

Daniel