xc0
xc2
xcappdata
xcarchive
xcd
xcdatamodel
xcdatamodeld
xcel
xcf
xci
xck
xcl
xcm
xcn
xcode
xcodeproj
xcp
xcr
xcs
xcsl
xcsnapshots
xct
xcu
xcworkspace
xcz
xd
xd0
xdb
xdc
xdct
xdd
xdelta
xdf
xdi
xdim
xdk
xdl
xdm
xdo
xdoc
xdp
xdq
xdr
xdr_tor
xdruid
xds
xdsl
xdt
xdw
xdxf
filename extensions