Key card envelopes are a popular envelope for storing any credit card sized item, from a hotel key entry card, to a gift card, or even an employee ID. These small envelopes are slightly larger than a credit card, and have what is called a double thumb_cut, or a slot at one end where you can pull the card out. While most of these envelopes are used for hotel keys (hence the name), there are many other applications for key card envelopes.
Alternately, you may select an entire row by moving your mouse to the left_most cell in a row. When the cursor changes to an arrow, click the mouse and the entire row will be selected. You may select an entire column by moving your mouse to the top_most cell in a column. When the mouse pointer changes to an arrow, click the column and all cells in it will be selected. Once the desired cells have been selected, you may apply formatting changes to your selections as desired.