Import Failed

[IS-2 0]

I've spent hours working on a model and here I am, trying to import it to Arma 3, but it doesn't want to work

I keep getting this error 

 

IMPORT FAILED: Parse error in OBJ file "Vox"

 

Extra Characters on line (maybe more vertices on face, than supported - four) at line: 19496

 

Here is that line, 

f 117/101/26 119/102/26 120/103/26 118/104/26

It looks the exact same as other lines

I am horribly confused and annoyed, I've spent this long on the project and when I thought I had finally finished it, this.

[PuFu 4600]

traingulate your entire model, O2 does not support ngons