Preprocess error in Siril

When I started preprocessing my NEF photo,it showed error that “Error in libraw Unsupported file format or not RAW file”.Are there any ways to fix it?

First, what version of Siril and what OS are you running?

I tried 1.4.0, 1.4.0 RC1 and 1.2.4.They all didn’t work. And just OSC preprocessing.

Looks like a RAW issue.
But again, I don’t know your OS.

Ah,yea.My OS is windows11.

Can you open your NEF file with siril?

No,I can’t.It showed that it failed to open doc.

Looks like your NEF format is too new.

Is there any programme or other ways to transfer such NEF?