That may help:

1. Right-click on the graph
2. Click on "Select data..."
3. Use the arrows above the series list. Note : it will move the graphs bars as well.

Here's a screenshot to explain. Let us know how it goes.

Excel Screenshot

This may help:

1. Right-click on the graph
2. Click on "Select data..."
3. Use the arrows above the series list. Note : it will move the graph's bars as well.

Here's a screenshot to explain. Let us know how it goes.