I wanted to start building my app with data. That is why I created an app from a spreadsheet of 55 columns in sheet1 and 1 column in sheet2 . The domain model is created properly as well as the pages. But when I am trying to view the app , it is showing me the following interface for sheet1. Though Sheet2 is showing properly. How to solve this? I thought mendix allow building app with spreadsheets of less than 100 columns.