You’re checking through old files. How can you tell which file type they are when you don’t recognise the extension, or they don’t even have that to help?
UTIutility
What’s a UUID, and a UTI? What can you learn from each, and where can you look them up? Important info about these, and a new release of a tool to help.
This page is for your support questions and comments on my free app UTIutility, a live reference on […]
Later this year, in macOS 10.15, one of the media types which will become unsupported is JPEG 2000 still images. Here’s how to find and convert your old images.
You try to open a document – in this case, one of Firefox’s bookmarks – and nothing happens. What could be wrong? It turns out it’s a bug, of course. But where?
An old bug in UTIs can cause problems for apps, and may even crash them. The issue is that macOS can’t always tell what type of object certain ‘files’ are.
Each now built with the latest version of Xcode, and notarized for your added security. Recommended for Mojave users in particular.
How does macOS open the document that you double-click/tap? First of 3 parts explaining what should happen and where it can go wrong.
Additional information is now shown for UTIs, it has its own custom app icon, and works wonderfully in Dark Mode.
What to do when you need to use Uniform Type Identifiers, only to discover that Apple’s reference manual hasn’t been updated for nearly 9 years: write an app!
