The Reverse Horizontal property is used to flip a chart horizontally. The picture below shows an example of a chart, with the Reverse Horizontal property set to false (As one can see, the values of the x-axis have left to right direction.):

 

 

If the Reverse Horizontal property is set to true, then the chart will appear in the opposite direction horizontally. The picture below shows an example of a chart, with the Reverse Horizontal property is set to true (As one can see, the values of the x-axis have right to left direction.):

 

 

By default, the Reverse Horizontal property is set to false.