ACE
is a
proprietary archive format introduced on Windows platform by
WinACE 
and ported to Linux as
command line utility (extraction only) by the same Author of WinACE.
No free
software is available for ACE archive creation, but UNACE for
extraction of ACE archives was made available as royalty free (for use
and distribution) closed
source software.
PeaZip features UNACE for Windows and Linux as external plugin in order
to keep the base PeaZip package free of closed source software (only
software released under OSI approved licenses are included); see
release map for download links.
UNACE plugin for PeaZip is available either as installable package or
as compressed package to be installed by hand (recommended for PeaZip
portable), and it's free of charge.
To extract ACE archives with PeaZip you can:
- Use context menu entry "- Extract archive(s) here"
- Use context menu entry "- Extract archive(s) to" to
be asked for output path
- Open it in PeaZip and use
"Extract all" button (you can chose output
path in "I/O" tab) or "Extract all to" to be asked for output
path.
