How to draw a cumulative histogram in Excel?

Question

excel

Graph for a parallel-sequential type of movement. I thought to create it in Excel, but I don’t know how to solve the problem. It is possible without splitting into pt1, pt1, pt1. But just pt. It seems like a cumulative histogram, but how to build it?

Answer 1

If you need what is shown in the figure, then this is not a stacked bar chart, but a Gantt chart.
How to build - see here