I am trying to put mkv files under Video Category when arranging by kind on a mac. Here's what I added to info.plist of the Core Services
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>UTTypeIdentifier</key>
<string>mycustom.mkv</string>
<key>UTTypeConformsTo</key>
<array>
<string>public.movie</string>
</array>
<key>UTTypeTagSpecification</key>
<dict>
<key>public.filename-extension</key>
<string>mkv</string>
</dict>
</dict>
</plist>
Even after a restart. The files don't show up as Movies.
I tried to follow the article OSX: assign extension to content kind
Can someone point out what I may be doing wrong here.