Here is a link where you can download some free Generational Mapping Software. This was written by a practitioner of multiplicative ministry whom I trained, Daniel Vopalecky, from the Czech Republic. I like it better than other options I have tried for tracking and reporting on the growth of networks.
Alternatively you can go to this site to use it without downloading a copy of the software to your machine. If you do that then you can upload data or enter it graphically and then download the data for later use.
Either way, you can print the generational map graphically or use a spreadsheet program (such as Excel for example) to import and export data using the .csv file format. I hope you find this to be a helpful tool for tracking and coaching your network of churches as it grows.