Open ACE File

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

The application to compress / decompress ACE files is
WinAce, maintained by e-merge GmbH, compatible with Microsoft

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: