I have an example (from Dell):
https://www.dell.com/support/home/en-ca/drivers/driversdetails?driverid=tjgkp&oscode=w764&productcode=optiplex-3020m-desktop
the page says: "This file format consists of a BIOS executable file. The
Universal
(Windows/MS DOS) format can be used to install from any Windows or MS
DOS environment." but it is a PE file:
paul@kasparno:~/Téléchargements$ file ~/Téléchargements/OptiPlex_3020M_A15.exe
/home/paul/Téléchargements/OptiPlex_3020M_A15.exe: PE32 executable (GUI) Intel
80386, for MS Windows
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