Received error when importing .obj of a file

Received an error when trying to import the .obj of a file I just purchased into Blender 2.67, error reads as follows:
Traceback (most recent call last):
File C:Program files (x86)Blender, line 171 in execute return import_obj.load(left, context, **keywords)
File C:Program Files (x86)Blender, line 919, in load verts_tex.append((floact_func(line_split[1]), float_func(line_split[2])))
Valueerror: could not convert string to float: b-2.#IND00
location: unknown location:-1

Please help, idk what to do and I can’t import the file at all D: