exporting to Gephi - keep duplicate edges in GraphML format

Mar 13 at 12:42 PM
Hello everyone,
I would like to export my NodeXl Data for visualization/further calculation in Gephi.
the problem is that by selecting "Export to graphML" all duplicate edges are automatically merged (according to popup window). But I only want to merge some duplicate edges ( I specified a third category: Vertex1, Vertex 2 plus third category determine duplicates).
Is there any other way to make the data available to Gephi AND keeping those duplicates?
Maybe Copy Paste into an Excel sheet?

Any help would be very much appreciated!
Many thanks in advance
Lavinia