id,name,start,end,progress,dependencies,custom_class
Task 1,Writing pyexcel-gantt,2017-07-17,2017-07-18,80,,
Task 2,Test pyexcel-gantt,2017-07-19,2017-07-20,10,Task 1,,
Task 3,Write up the documentation,2017-07-21,2017-07-22,0,Task 1,,
Task 4,Release pyexcel-gantt,2017-07-23,2017-07-23,0,"Task 2, Task 3",,