You can save a specific table or a set of tables if you don’t want to save all the changes you made in a database diagram.
To save selected tables
Choose Save Text File if you want to save the list of tables in a text file in the project directory before continuing. When a message box displays the name of the saved text file, choose OK.
Note The list of tables may contain tables in addition to those selected. For example, if you change the datatype of a column that participates in a relationship with another table, both tables will be included in this list.