Getting .adf files to Disk via a decent interface has always been a pain in the proverbial for most of us.
As spudje also mentions, I'd like to endorse....
I recently registered with
GOADF
Loving it. - Extract .adf's to Floppy:, RAD: drives & even it's own virtual drives.
Any Amiga 68k with:
CPU 68000 (68020+ is needed to use virtual drives)
1Mb RAM
Kickstart 2.0+
HDD
xvs.library
reqtools.library v38+ (download it from Aminet)
Works great & easy to understand. - Even for OAP's like me.