CLB Library files for Mac

I have a Macbook Pro - I’m attempting to load a CLB Library File. When I try to load the file it is grayed out. Thinking it may be a windows file; I went to my desktop in another room and it loaded fine.

Is there a way to load these CLB Library files to Lightburn that is installed on a Mac? TIA

The LightBurn file formats, including all supporting file formats (libraries, settings, prefs and the like) are OS-agnostic, there are no OS dependencies to the LightBurn file formats.

I have not observed any issue loading Library files on any of the Macs (desktops and laptops) I have here.

What version of macOS? What else can you share or think of that is unique?