Formatting chart X axis
On the X Axis tab:
- In the Axis Title field, enter a title for the X axis.
 - To define the format of the title, click the button to display the Styles Properties dialog where you can select a font, color and other characteristics for the text.
 - To determine whether the X axis title is to be aligned to the left, center or right, use the Title Align radio button.
 - To display labels on the axis, check the Show Labels check box. Use the button next to this check box to define the format of the labels.
 - Click to save the changes.