Jul 04, 2013 · An E57 file is encoded as a hierarchical tree structure, some of which is encoded in XML, and some of which is encoded in a binary format that is not XML. The bulk of the data, including point data and images, is encoded in the binary sections for efficiency. Metadata, such as sensor pose information, is encoded in XML. . For starters, you can't export a pointcloud in a CAD format (.step, .iges, etc), you need to use a points format (.xyz, .txt, .pts, .e57, etc). There is a free. . Import your Matterport Point Cloud (E57 or .XYZ) files and seamlessly convert, share and render them within Revit. Download Matterport Scan-To-BIM assets directly from our Platform and import them into a new or existing project.