.E57 File

The e57 file extension is typically used for E57 3D Imaging Data Exchange format developed by the Data Interoperability sub-committee of the ASTM E57 Committee on 3D Imaging Systems.

The E57 File Format for 3D Imaging Data Exchange is capable of storing point cloud data from laser scanners and other 3D imaging systems, as well as associated 2D imagery and core meta-data.

The 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. The binary sections are not embedded in the XML section. Instead, they are located in separate sections of the file and referenced from the XML section.

Files with e57 file extension can be typically found as 3D data saved in the 3D imaging data exchange format developed by ASTM Committee E57 on 3D Imaging Systems.

How to open:

E57 format can be for example opened with libE57 software.

How to convert:

Considering *.e57 files are used for exchange purpose, a conversion or export is perhaps possible.