Unfortunately, there is currently no built-in function that converts from “.mat” to “.ctc”, so you will either need to look that up on File Exchange or write your own function. However, just in case you find it useful, there is a way to convert “.mat” to other formats such as “.txt” and “.csv” using “dlmwrite” and “csvwrite”, respectively.
https://www.mathworks.com/matlabcentral/answers/195151
