How to show extension file in the status menu?

[3xploit]

anyone know how to show extension file (ex: jpg, webp) in below status menu?

[JendaLinda]

File extension is shown in the window title.

[3xploit]

yeah i know, can we show in status menu?

i always using irfanview for comparison file size and looking extension they have, look more easy if we can show in status menu

[Bhikkhu Pesala]

Settings, Viewing, Status Bar Text, $n$O.