file in \Program Files\Common Files\Microsoft Shared\web server extensions\wpresources\RadEditorSharePoint\18.104.22.168__1f131a624888eeed\RadControls\Editor\Scripts\7_1_1\
Note that these changes are lost when you retract the RadEditor solution (e.g. if you are updating the editor to a new version). Therefore you will need to apply them each time you install a new editor version.
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