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Unable to open XLD software

I cannot open XLD - Apple says it cannot check it for malware software. It isn't in the applications.


MacBook Pro 13″, macOS 10.15

Posted on Feb 15, 2021 4:15 AM

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Question marked as Top-ranking reply

Posted on Feb 15, 2021 9:06 AM

Hi Tony,


I suspect that wasn't downloaded through the App Store. Apple has extra levels of security around non App Store software. I don't use Catalina but on my older OS I can right click on an app and I am presented with a dialog asking me if I am sure I want to run this software, etc. Here's a document discussing all this Safely open apps on your Mac - Apple Support

1 reply
Question marked as Top-ranking reply

Feb 15, 2021 9:06 AM in response to tonywhooley

Hi Tony,


I suspect that wasn't downloaded through the App Store. Apple has extra levels of security around non App Store software. I don't use Catalina but on my older OS I can right click on an app and I am presented with a dialog asking me if I am sure I want to run this software, etc. Here's a document discussing all this Safely open apps on your Mac - Apple Support

Unable to open XLD software

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