CSi XRevit 2019 CSiXRevit is a plugin for Autodesk Revit® that enables bi-directional data transfer to CSI Software products: SAP2000®, ETABS® and SAFE®. CSiXRevit supports four (4) main workflows of data transfer with Autodesk Revit®: Exporting from Revit® to create a new CSI Software model. Exporting from Revit® to update an existing CSI Software model. Importing from CSI Software to create a new Revit® Model. Importing from CSI Software to update an existing Revit® Model.