msof
msp
msplg
msproducer
mspx
msq
msqm
msr
msrcincident
mss
msstyle
msstyles
mssytles
mst
mstat
mstf
msth
ms-tnef
msu
msv
msvc
msw
mswd
mswk
mswmm
msx
msym
msz
mt_
mt2
mt2s
mt9
mta
mtb
mtd
mte
mtf
mtga
mth
mthm
mti
mtk
mtl
mtm
mtml
mtp
mtr
mts
mtt
mtv
filename extensions