Magnet Forensics provides a FREE tool at http://info.magnetforensics.com/tsv-to-tln-converter, which converts the X-Ways generated TSV file into the TLN format. From the tutorial, this looks to be pretty neat and you can’t beat the price either.
The tutorial on how to use the TSV to TLN Converter can be found at: http://www.magnetforensics.com/convert-x-ways-tsv-data-into-tln-data-for-ief-timeline/
The X-Ways Forensics Practitioner's Guide/2E 