Are E-Prime 1.x experiments compatible in E-Prime 2.0?
A. Yes. Experiments created using E-Prime 1.x will upgrade to E-Prime 2.0 without error or significant modifications. When an experiment is upgraded to E-Prime 2.0, it receives a new extension (.es2), and preserves the original E-Prime 1.x file so that you can continue to access the original (.es file) using E-Prime 1.x. Experiments upgraded to or created from scratch using E-Prime 2.0 (.es2 or ebs2 files) cannot be accessed or run using E-Prime 1.x.