MATLAB: Error using copyfile (Cannot copy or move a file or directory onto itself)

cannot copycopyfile errordirectory onto itself

I am trying to copy a file with name test_0 and paste it in same location with name test_1. Then i want to repeat this code with the numbers increasing by one in the file name. I wrote this code:
for i=1:100
Filename=strcat('test_',num2str(i));
Filename=strcat(Filename,'.xlsx');
FilenameR=strcat('test_',num2str(i-1));
FilenameR=strcat(FilenameR,'.xlsx');
copyfile (FilenameR),(Filename)
end
and i am getting an error:
Error using copyfile
Cannot copy or move a file or directory onto itself.
Error in File (line 19)
copyfile (FilenameR),(Filename)
What can i do.

Best Answer

Your copyfile sytnax is incorrect. Try this:
copyfile(FilenameR,Filename)
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