Export a cell array containing unicode characters in a text file

How to export the following cell array containing the unicode characters U+2191 and U+2193

str={'this ↑ up','this ↓ down'};

in a text file, in such a way that the two arrows will still be visible?

I tried with

str={'this ↑ up','this ↓ down'};
writecell(str','test')

but I got

I also tried with

fid = fopen('temp.txt', 'w');
str = char([2191, 2193]);
encoded_str = unicode2native(str, 'UTF-8');
fwrite(fid, encoded_str, 'uint8');
fclose(fid);

but I got

[Muhammad Usman]

Change your 2nd line of code as:

str = [char(8592), char(8593), char(8594), char(8595), char(8598), char(8599), char(8600), char(8601)];

I got help from the link given below:

unicode symbols on popupmenu pushbutton

[giannit]

Thank you! I used your codes and then added the utf-8 encoding to writecell, as following

str={['this ' char(8593) ' up'],['this ' char(8595) ' down']};
writecell(str','test','Encoding','UTF-8')

and in this way it works!

[Muhammad Usman]

You are most Welcome