Problem:
If there exist empty cells in the selected data range, the PetroPlot program might hang up.

In the following example, trace element data are not complete.



Now we select a data range and run the PetroPlot "Multi-XY Plot" function



PetroPlot hangs up, gives only one series even we selected all data.

Solution:
Create two columns with sequential data.



Run the PetroPlot "Multi-XY Plot" function



Format the TempX vs TempY chart



Copy the TempX vs TempY chart to another place, and run "Change XY" function



The result.