I normally import ABC to my notation processor (Noteworthy) by converting it to midi and then importing the midi. I use 5 Line Skink in Linux. It's a java program so platform independent and I find it works fine, though it is very fussy - your ABC syntax must be spot on, so you can sometimes spend a bit of time correcting syntax errors.

Mostly I get ABC files via JC's ABC tune finder and with those I simply select and download the midi directly.

I tried Note Edit and Muse Score and I wasn't keen on them, especially Muse Score. I am too used to Noteworthy so I now have Noteworthy running on Linux with Wine and it works fine.

Geoff