MATLAB: Connecting line

contourexcelgraphMATLAB

I have a excel file from where I made plot3. The Excel file is here: http://www.4shared.com/file/Gcoz8xa0/Contour.html and coding of the M-file is :
clear all    [Num,Txt,Raw]=xlsread('Contour.xlsx');a=Num(:,1);b=Num(:,2);c=Num(:,3);d=Num(:,4);e=Num(:,5);f=Num(:,6); figure(3);plot3(c,b,a,'-+r',e,f,d,'--og')grid onxlim('auto')ylim('auto')zlim('auto')xlabel('X')ylabel('Y')zlabel('Z')
I need to connect all the points of the two lines along Z axis (from z= 5 to 20 each points)(Say, for Z=5, [b,c]= (1.1, 24)and [e,f]=(-34,1.5) ) . Any one can help me how to connect these points ?

hold onk = reshape([3 2 1 5 6 4],3,[]);arrayfun(@(i1)plot3(Num(i1,k(1,:)),Num(i1,k(2,:)),Num(i1,k(3,:))),1:size(Num,1))