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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MS Excel
How do you insert a row?

Select the row heading where you want to insert the new row and select Edit >Row from the menu
Select the row heading where you want to insert the new row and click the Insert Row button on the standard toolbar
Right-click the row heading where you want to insert the new row and select Insert from the shortcut menu
All of the listed here

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MS Excel
Right clicking something in Excel:

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

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