With MacOS you can select several files at one time and do the "OPEN" command (from the System).
With 1 file, its works fine.
With 2 or more, it do not works with LibreOffice : an error message appears indicating that f-the file dosen't existe (the file name is concatenate with all the file name).
I do not remember from which version it do not works, but in the old time it has worked (perhaps when it was OpenOffice)...
*** This bug has been marked as a duplicate of bug 54264 ***