Different sizes in columns of data files

I need some help

I am using a excel data files with two columns, to use in the estimation of a dsge model.

The first column has 30 data, and the second one only 9 data. When Dynare works, it says "loading 30 data… " Is dynare using only 9 data for the two variables, or perhaps it only uses one variable… ?
Do you help me or give me some link about the data loading ?

Thank you very much in advance


Help, please!!!

From the manual:

Ok, thank you very much!