The systems and subsystems related to Drupal’s migration API are certainly exciting. In the previous articles in this series, I wanted to draw as complete a map as possible (part one) of the vast amount of resources, possibilities and referenced experts. In the second part I wanted to expose some basic mechanics of the migration processes in Drupal and knowing that this opens the door to thousands of options, possibilities and techniques….I didn’t want to let a third article go by without sharing some experiences migrating data from a common format as a Google Spreadsheet, …