I wanna save string data in my gui with txt format but I want to choose directory and file name in dialog box

for example;

string=[100, 150, 200]

I want to save this data with .txt format in dialog box which enables me to choose directory and file name like uiputfile.

Answer 1

[David Sanchez]

[file_name  PathName] = uigetfile('*.mat','Select *.mat file');
full_file_path = fullfile(PathName, file_name);
fid = fopen('my_txt_file.txt','w'); % open file for writting
fwrite(fid,full_file_path);
fclose(fid);

[sermet]

[file_name PathName] = uigetfile('*.mat','Select *.mat file'); in here, which .mat files I have to choose, I don't have any .mat files, I wanna save my string data in GUI.