Hi all,

would be great to get your help. I have three sets and want to import them from Excel without assigning values. I found ways to import n and u, but this multidimensional nu seems problematic.

ExcelTab (columns A and B)

n1; u1

n1;u2

n2;u3

n2;u4

…

sets

n Node

u Unit

nu NodeUnit

Perfect would be something like:

$Onecho > task.txt

Set=nu rng=ExcelTab!A1 rdim=1

$Offecho

$call GDXXRW … @task.txt

At the end, I need the set nu(n,u)

/n1.u1

n1.u2

n2.u3

…/