IfcOpenShell/src/ifc5d/schedule.csv

"Hierarchy","Identification","Name","Quantity","Unit","Foo","Bar","Baz","Subtotal"
1,1,"Demolition",,,,,,301
,,,,,,,,
2,1.1,"Building A",,,,,,96
,,,,,,,,
3,"1.1.1","Soft strip",1,"m",5,4,3,12
3,"1.1.2","Hard Strip",2,"m2",6,5,4,30
3,"1.1.3","Hazmat",3,"m3",7,6,5,54
,,,,,,,,
2,1.2,"Building B",,,,,,205
,,,,,,,,
3,"1.2.1","Soft strip",4,"hr",8,7,,60
3,"1.2.2","Hard Strip",5,,9,,8,85
3,"1.2.3","Hazmat",6,"kg",10,,,60