Empty rows and columns after excel upload into EAZY BI

[Dona Liz Peter]

 I am trying to upload an Excel table to EAZY BI. I followed the tutorial, and I rows and columns. I see the values in Preview of Source data:

But after I try to use it over a report, I get empty rows and columns:

So, could you please explain, the steps after an excel upload? 

How can I overcome this ?

Thank you