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File type associations

If associations "stick" to a particular app and will not change by the usual expedient of "Get Info", changing default app and "Apply to all" then try this:

  1. Repair permissions
  2. Open Terminal and type in the following:
/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/Support/lsregister -kill -r -domain local -domain user;killall Finder;echo "Open With has been rebuilt, Finder will relaunch"
All file associations are managed through the com.apple.launchservices.secure.plist file and can be managed from the command line via the lsregister utility. The "-dump" option will show you the current database. Use the "-kill" option to rebuild the database.

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