how to undo a save in matlab

Unfortunately, there is no built-in undo feature for saving files in MATLAB. Once a file is saved, the previous version is overwritten and cannot be recovered through MATLAB itself.

However, if you have a backup of the file or if you use a version control system like Git, you can revert back to a previous version of the file. Version control systems allow you to track changes in your code and easily revert back to any previous revisions.

It's always a good practice to regularly create backups or use version control systems to avoid irreversible changes or accidental overwriting of your code files.