I have two columns of siganl names. Column A is "From" data. Column B is "To"
data. In some cases the dulpicates are the same signal path in reverse. An
example would be Col A: Pin_1 Col B: GND. Further down the list would be Col
A: GND Col B: Pin_1. I have 60,000+ rows of signal names. It would be great
to find the duplicates and eliminate doing twice the work.

Thanks
Dan