The ACE extension is a proprietary data compression format developed by
E-Merge GmbH.
This file type is a binary compressed MIME application / x-ace-compressed
type.
The application to compress / decompress ACE files is
WinAce, maintained by e-merge GmbH, compatible with Microsoft
Windows.
Also, there are ACE file decompression programs, which are free for many
platforms (such as macOS and Linux).
To open and work with files with the ACE extension, you need one of the
following software packages: