Closing a table removes it from active use in your current session. To close tables, on the HOME tab, in the File group, click Close Table. When you close a table, you automatically close all views of that table. If you close a table that is displayed in a Map window with other tables, MapInfo Pro removes that table from the window, but the Map window remains open.
In addition, any subset tables of the original table (known as query tables) also close. You can use the Close command for any table, whether or not it is displayed in a window. Opening and closing tables is different from opening and closing windows in which you view your tables. You can open a table without opening any views of the data. Similarly, closing a window does not close the table (or tables) you are viewing in the window. They are still open and available for use. To close a window, click the Ctrl-menu box in the upper-left corner of any window and select Close.
If you have made changes to a table but have not yet saved those changes, MapInfo Pro will ask you if you want to save them before closing the table. To save your changes, on the HOME tab, in the File group, click Save, and Save Table, or Save Copy As from the list.