MS Excel
You can select a single range of cells by

Clicking the upper-left cell in a group of cells and then pressing the Shift key while clicking the lower right cell in a group of cells
Pressing the Shift key and an arrow key
Dragging over the desired cells
Pressing the Ctrl key while dragging over the desired cells

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MS Excel
Right clicking something in Excel:

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

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MS Excel
How can you delete a record?

Select Data > Form from the menu to open the Data Form dialog box, find the record and Click the Delete button
Click the Delete button on the Standard toolbar
Delete the column from the worksheet
Select Data > Delete Record from the menu

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