To edit data within a field, click in the field you want to edit.
To replace the entire value, move the pointer to the leftmost part of the field until it changes into the plus pointer , and then click.
Type the text you want to insert.
Notes
If you make a typing mistake, press BACKSPACE. If you want to cancel your changes in the current field, press ESC. If you want to cancel your changes in the entire record, press ESC again before you move out of the field.
When you move to another record, Microsoft Access saves your changes.