You can press the Delete key on your keyboard. If you are typing something, but have not completed and pressed enter, you can click on the X on the Formula bar that appears when you are typing. That will clear the new content and leave the cell as it was before you started entering something.
To cancel an entire entry before entering it into an Excel cell, hit the Esc key or click on the Cancel button on the formula bar, which is the red x.
Press the Esc key or click on the Cancel button, which is the red x beside where you are typing your entry.
It displays the Cancel button, which is red X, and the Enter button, which is a green tick.
It erases what is inside the cell.
You place your cursor in the cell, and delete the formula.
Spacebar
It copies what is in the selected cell or cells at that time.
The equals sign.
In Microsoft Excel, pressing the Escape/Esc key while typing in an active cell will cancel the entry.
To make the moving border around a cell disappear in Excel, simply press the "Esc" key on your keyboard. This will cancel the selection of the cell and remove the moving border. Alternatively, you can click on any other cell to deselect the current cell, which will also eliminate the border.
You are brought to the first cell on the current row.
AnswerWell, OK button can be both in right side and left side of the Cancel button. But mostly OK button should be to the Right of the Cancel button, For example: if any one fill a form then normally he will go to the right side of the form and click on the OK button. And if you are showing OK and Cancel Button on a pop up massage box then OK button should be in the left side of the Cancel Button.