Selecting and Deselecting Columns 

Procedure

You select a column by single-clicking the column header.

To select more than one column:

Select a column, choose Shift or Control, and select the desired columns,

or

Choose Shift, and select the first and the last of the desired columns,

or

Select a column, keep the mouse button pressed, and pass over the desired columns.

Select a column, choose Control, and select the desired columns.

To deselect individual columns, press and hold the Ctrl button and click the relevant column header.

Result

Selected columns have an orange background.