Question: writing data to a file

writedata("C:\\duffy\\mapleprogramme\\relevant\\conditional optimal\\optimal3", css, float);
> convert(css, matrix);

I used the above command to save data into a file but it didn't work. I also used the comand export (which would be better) to save data in one excel column, but it didn' work either, could you please help me understandig how can I save data? The data appear in the programme with this format:

Matrix(1, 1, {(1, 1) = .73951725}), Matrix(1, 1, {(1, 1) = 4.87812917}), Matrix(1, 1, {(1, 1) = 6.31269801}), Matrix(1, 1, {(1, 1) = 7.81493883}), Matrix(1, 1, {(1, 1) = 8.602460370}), Matrix(1, 1, {(1, 1) = 9.025430512}), Matrix(1, 1, {(1, 1) = 9.598027604}), Matrix(1, 1, {(1, 1) = 10.63014967}), Matrix(1, 1, {(1, 1) = 10.73333749}), Matrix(1, 1, {(1, 1) = 10.93549339}), Matrix(1, 1, {(1, 1) = 11.43948173}), Matrix(1, 1, {(1, 1) = 12.16822216}), Matrix(1, 1, {(1, 1) = 12.08637605}), Matrix(1, 1, {(1, 1) = 13.50620462}), Matrix(1, 1, {(1, 1) = 13.15651487}), Matrix(1, 1, {(1, 1) = 13.97518963}), Matrix(1, 1, {(1, 1) = 13.99146330}), Matrix(1, 1, {(1, 1) = 14.49521658}), Matrix(1, 1, {(1, 1) = 14.70907043}), Matrix(1, 1, {(1, 1) = 15.65767414}), Matrix(1, 1, {(1, 1) = 15.67381671}), Matrix(1, 1, {(1, 1) = 16.48332982}), Matrix(1, 1, {(1, 1) = 16.49151927}), Matrix(1, 1, {(1, 1) = 17.48400001}), 11.05006942504974

I would like to make this one coulumn.

Thank you in advance