Vector export in excel from a .m file

Dear all,
I meet a problem exporting a vector from a .m file. The vector is elaborated from the steady state results of a dynare program and I would like to export it as an excel file.
I have used the following formula :

filename = ‘steady_state_output.xlsx’;

writecell(state_vector, filename);

and the following error message appears:

Error using writecell
Nested cell arrays are not supported.

Error in matching_vector (line 87)
writecell(state_vector, filename);

It seems that the writecell function is not appropriate.
Is anyone of you has a substitute function to export my vector ?
Thanks for the help

Usually, I would use xlswrite. But without context or codes to check it is impossible to tell.