DXF Format missing from Illustrator Export options

[Estoque]

Hi all, 

I always use Adobe illustrator to convert customer-logo's to a DXF format, to use in lasercutting applications. This always worked wonderfull.

However, i just found that my Illustrator program won't let me give this option in the Save or Export settings.

 (see images Attached)

Let me know what i'm doing wrong, i'm going mad 😛   

Thanks in advance!

{Renamed by MOD}

[ebrukefeli]

Thank you evry much Johnny, worked perfectly : )