Are AVA experiment files from different software versions compatible? You can use experiment files created in AVA v1.0 in AVA v1.1. (Note that in some cases, drivers may change when you open the old file in new AVA – e.g. an RZR driver may switch to the new Hei-TORQUE + RZR driver.) However, experiment files created in AVA v1.1 will not work in v1.0.