Protecting original data

To prevent the accidental modification or deletion of your original data, you can mark the file as read-only.

1. From the Data Editor menus choose:

File > Mark File Read Only

If you make subsequent modifications to the data and then try to save the data file, you can save the data only with a different filename, so the original data are not affected.

You can change the file permissions back to read-write by choosing Mark File Read Write from the File menu.