This is METAFONT, Version 2.7182 (Web2C 7.3.1) (base=mf 2002.9.6)  22 MAY 2006 16:15
**data.exf my_exf/
(data.exf
>> # $Header
! Isolated expression.
<to be read again> 
                   :
l.1 # 
               /u/gcmpack/MITgcm/verification/lab_sea/input/data.exf,v 1.8 2...

? 
! Emergency stop.
<to be read again> 
                   :
l.1 # 
               /u/gcmpack/MITgcm/verification/lab_sea/input/data.exf,v 1.8 2...
End of file on the terminal!