The SPELL project started as a pet project when my husband and I were doing our masteral thesis in the Netherlands. I was using Excel to do the statistical analysis of my time series which took so long and prone to errors. My husband needed some tools to processes spatial data since we did not have access to ArcGIS during that time. He started writing small programs to manage, process, and analyze temporal and spatial data. Today, we put together tools that can help you do the same.