OpenXLIFF Filters is an open source set of Java filters for creating and merging XLIFF 1.2 and 2.0 files. Source code is hosted on GitHub at https://github.com/rmraya/OpenXLIFF. Ready to use binaries for Windows, Linux and macOS are available in this web site, at OpenXLIFF Filters and Downloads.
With OpenXLIFF Filters you can create XLIFF files that don't use proprietary markup and are compatible with most Computer Assisted Translation (CAT) tools.
Rodolfo Raya is Maxprograms' CTO (Chief Technical Officer), where he develops multi-platform translation/localisation and content publishing tools using XML and Java technology. He can be reached at email@example.com.