If possible, the TurboSmooth modifier is left in the 3Ds Max 2013 file.
Export files without using TurboSmooth

1. Flow Slim Padded Armchair 5 Point-Star on Castors MDF Italia
WxHxD 67x76,4x67cm
2. Flow Slim Armchair Padded With 4-Legged LEM MDF Italia
WxHxD 65x76,4x65cm

https://www.mdfitalia.com/en/ 

Name: Flow_Slim_Armchair_1
Version: 2013
Preview: Yes
Units: Millimeters
Polys: 120,119
XForm: Yes
Box Trick: Yes
Model Parts: 11
Render: Corona
Formats: 3Ds Max 2013, OBJ, FBX