# Download the tutorial You can download the archive "tutorial.zip" and unzip on your computer. Be aware that this archive is over 25Mb in size - it could take awhile when downloading on slow modem connection. This tutorial is not perfect and I hope that you help make it better by providing suggestions/corrections, creative criticisms, etc. Please read the installation instructions before proceeding with unzipping the downloaded file. Tutorial home Created by Pericles S. Nacionales Contributions by Jeff McKenna, Gateway Geomatics 2010-04-07