This problem will be solved if you use the latest version of P-touch Editor (Version 5.1.105 or later).
Download and install the latest version of P-touch Editor from the [Downloads] section.

If the issue is not resolved or you will use an older version, refer to the following:

Change the encoding of the file to UTF-8 in the text editor that you are using.

How to change file encoding in TextEdit:

1. Open TextEdit.
    
2. Click [TextEdit] > [Preferences] in the menu bar.
    
3. Click the [Open and Save] tab.
    
4. Select "Unicode (UTF-8)" from the drop-down list in "Plain Text File Encoding" > "Saving Files".
     
   
    
5. Close the Preferences window.
    
6. Open the CSV file again, and then save it.