Enterprise Administration > Windchill Data Loading > Introduction to Data Loading and the LoadFromFile Framework > Overview of Load Utilities
  
Overview of Load Utilities
Migrating legacy data into a new Windchill implementation is a fundamental requirement of any system implementation, but historically, it has been a labor-intensive manual task. The same can be said about merging information from a new acquisition into a PDM environment, including Windchill.
PTC offers the LoadFromFile framework to help with these activities.
The wt.load package is a set of framework utilities for loading demonstration or test data. It can be expanded to load new classes. The LoadFromFile utility can be called from both the command line and from other classes.