Selecting cells with empty data
I have a table that looks like the table below: operatorM typedescriptiondescription 2M1M2M3M4M5M6415NxyzA hotHot clean 1415415415415415415615NxyzB coldCold clean 1615615615 615615815NxyzA hotHot clean 28158158158158158151015NxyzB coldCold clean 21015 10151015101510151215NxyzA hotHot clean 11215121512151215121512151415NxyzB coldCold clean 114151415141514151415 1615NxyzA hotHot clean ...
