The model was created in the 2014 version and saved in an earlier 2011.
Also present is the OBJ format.
There are no third-party plug-ins, all elements are named by their names.
For Corona render, it is recommended to put a version not lower than 1.5, since the glossiness of materials is adjusted to PBR,
You can buy it here: https: //www.estetica.ru/collections/gostinaya-gruppa/divany/millenium/