Please help : Reference to non-existent field

I am estimating a dsge model using Bayesian method.
but the problem below arises. I tried to solve it following some advices on the forums,but failed.
I am a newbie.
I will really appreciate your help .

??? Reference to non-existent field ‘y’.

Error in ==> read_variables at 63
dyn_tmp_01 = s.(deblank(var_names_01(dyn_i_01,:)));

Error in ==> dynare_estimation_1 at 237
rawdata =

Error in ==> dynare_estimation at 62

Error in ==> mymod at 302

Error in ==> dynare at 132
evalin(‘base’,fname) ;
mymod.mod (2.42 KB)

here is my datafile
simudata.xls (29.5 KB)

I’ve solved it maybe.
import simudata.xls ,save as simudata.mat
write .m file named simudata.m
codes as follows:
load simudata;

save simudata