Gephi forums

Hi I am working on a project and want to see the interaction between Authors. The excel file I have links the Authors but they are not weighted so their node size doesnt change. I just want to see the interaction between the authors I have in respective to their weight, for example if they have a lot of interactions I want them to have a bigger node but that doesnt work for the data input I have . I have also tried converting to an adjacency matrix but that doesnt seem to work either. I would be grateful if someone could help me out. I have attached the file