MS Excel
Right clicking something in Excel:

Opens a shortcut menu listing everything you can do to the object
Selects the object
Deletes the object
Nothing the right mouse button is there for left handed people

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MS Excel
How do you delete a column?

Select the row heading you want to delete and select Edit>Delete from the menu
Right click the column heading you want to delete and select delete from the shortcut menu
Select the column heading you want to delete and select Insert Delete from the menu
Select the column heading you want to delete and select the Delete Row button on the standard toolbar

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