You can manually create a custom Gantt chart from scratch using the native Chart menu of PowerPoint. In its Chart menu, you can find several types of standard charts including line, bar, area, pie, ...
To create a bi-directional mirror bar chart in Excel, you will have to start with the Stacked Bar In the 2-D Bar section. Here are the detailed steps to be followed. In the 2-D Bar section, select the ...