You can preview and download the dataset from this tab. The dataset is broken into two files types, Edges and Nodes, and is available in multiple file formats, compatible with most common software packages. You can also view and download the Codebook, which provides information on the structure, contents, and layout of the dataset.

Learn About Network Modularity in R With Data From Zachary’s Karate Club (1977)
This dataset is designed for teaching the idea of modularity in network analysis. The dataset is a subset of data derived from the karate club dataset collected by Zachary (1997), and the example examines the community structure of the social network between the karate club members. The dataset file is accompanied by a Teaching Guide, a Student Guide, and a How-to Guide for R.