Have you noticed quarantine flags appearing on movies and PDFs which have never been downloaded? Here’s a possible explanation.
extended attributes
All about textClipping and pictClipping files: what they are, and how to access the data within them.
Notarized versions of DeepTools for working with versions, Rosettavert for converting text encodings, SearchKey and SearchKeyLite for editing extended attributes for Spotlight searches.
Scrub can now clean individual files properly, stripping extended attributes, saved versions, resetting their creation date, and more.
Small changes in tables which allow you to navigate using the cursor keys – but should greatly improve their usability. Recommended for all users.
This new version has full access to files and folders, even with Mojave’s privacy protection in force.
Comparing the contents of archive files, such as .sit(x) and .zip archives, can be simple, but quickly gets more complex.
This new version adds a simple tool to discover any differences in extended attributes between two files.
Comparing the data in two files is easy, but what about its extended attributes? There hasn’t been a simple tool to do that, until now.
Last of 3 articles explains how macOS selects and starts the app with which to open a document which you double-clicked/tapped.
The Eclectic Light Company 