Once your script has imported a data table, or made changes to an existing JMP data table, you probably want to save the table. To do that, you send a Save or Save As message with a path and file name argument to the data table through an object reference. After your script has finished working with the data table, you can close it -- and in fact, it's a good idea to close it if your script no longer needs it, because data tables are held in memory. The Close function takes a data table object reference as an argument. When you close a data table, you can specify if the data table should be saved and provide a file name, or you can specify that it should be closed without saving it.