On 3/3/06, Benjamin Smith <lists@xxxxxxxxxxxxxxxxxx> wrote: > Here's the problem: > > [ben@kepler tmp]# file -i presentation.ppt > presentation.ppt: application/msword Excerpt from /usr/share/magic.mime: --- snip --- # msword: file(1) magic for MS Word files # # Contributor claims: # Reversed-engineered MS Word magic numbers # 0 string \376\067\0\043 application/msword 0 string \320\317\021\340\241\261 application/msword 0 string \333\245-\0\0\0 application/msword --- snip --- The middle one of those matches the first six bytes of a powerpoint file. Whether it also might match the first six bytes of some msword documents, I don't know.