The zip file contains the files used to perform numerical simulation and bifurcation studies of large networks of two-dimensional integrate and fire neurons and of the corresponding mean field models derived in our paper: Nicola W, Campbell SA (2013) Bifurcations of large networks of two-dimensional integrate and fire neurons. J Comput Neurosci The neural models used are the Izhikevich model and the Adaptive Exponential model. The files are organized into three folders, one corresponding to each of the numerical examples in the paper. Each numerical example folder consists of MATLAB code and MATCONT code. The MATLAB code contains a series of GUI's to implement direct simulations of the network and of the corresponding mean field model. The MATCONT code generates the bifurcation diagrams of the mean field model. The MATCONT code should be extracted out of the folder and placed in the root MATCONT folder. The MATLAB files may be placed in any folder, but all files for a particular numerical example should be placed in the same folder.