iMac GLB. files no longer opening?

My visual renderers send me GLB files for inspection of my products. I have opened them many times over the years on my iMac. This morning, however, the file won't open. A window pops up saying I don't have the software to open it.


But my MacBook Pro will open the file.


It's strange how the MacBook Pro will, while my iMac no longer will.


Does anyone know why?

iMac 27″ 5K, macOS 13.7

Posted on May 2, 2025 7:44 AM

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7 replies

May 7, 2025 2:45 PM in response to Old Toad

There is no option anywhere to use Preview to open the file. I tried using Photos, so it's now the default, as you can see in the screenshot. I'm not sure how to remove Photos as the default, but I'm unsure if it matters, as I can't get it to be an option anyway.


Very strange on my MacBook, how Preview just opens the file. My desktop will not let me.


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iMac GLB. files no longer opening?

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