“Can you link to one please?”
Here the one.
File “orcamanual.inp” created using data in ORCA 5.0.3 manual, “IR Spectra” chapter. So “orcamanual.out” is native ORCA’s.out file. Avogadro can’t read this file, moreover - orca_mapspc.exe can’t read this .out and drops off with the message “Error: cannot find keyword : IR SPECTRUM”. Notepade++ indicates that .out file encoding is UTF-16. After converting to UTF-8 (“orcamanual_cnvrtd.out”) all are Ok, Avogadro and orca_mapspc.exe work fine.
Operation system Windows 10/11, win64.