Select the region that must be automatically executed when the worksheet opens.

From the Format menu, select Autoexecute, and then Set.

To remove the autoexecute setting in a region:

Select the region to be cleared.

From the Format menu, select Autoexecute, and then Clear.

To remove all autoexecution in a worksheet, select Clear All.

To repeat autoexecution of marked groups:

From the Edit menu, select Execute, and then Repeat Autoexecute.

To set warning levels for the autoexecute feature, use the Security tab in the Options dialog.