If possible, the TurboSmooth modifier is left in the 3Ds Max 2013 file.
Export file without using TurboSmooth.
V-Ray material has been converted automatically.
https://www.baxter.it/en/product/budapestair 

Name: Budapestair
Version: 2013
Preview: Yes
Units: Millimeters
Dimension: 2590.85 x 1070.48 x 688.55
Polys: 118 183 (without TurboSmooth)
XForm: Yes
Box Trick: Yes
Model Parts: 12
Render: V-Ray, Corona
Formats: 3Ds Max 2013, OBJ