ISO 14306:2012 Preview
Industrial automation systems and integration -- JT file format specification for 3D visualization
ISO 14306:2012 provides the description of the structure and content for a binary file having the extension of .jt. A binary file with the .jt extension is generally referred to as a JT file. The JT format described in ISO 14306:2012 is used primarily in industrial use cases as the means for capturing and repurposing lightweight 3D product definition data.