How do you remove the default open with application for a file extension? Not change it but remove it so when I try to open it a popup says "There is no application set to open the document “file.blabla”.
MacOS Applications – Removing the Default Application for Opening Files
applicationsmacos
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Best Answer
Use RCDefaultApp. With it, you can set the file association to
<disabled>Another option is to use the command line and
lsregister.lsregisteris located in/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/Support/To see all the available commands, run/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/Support/lsregister. See this article for more information.