Você pode abri-lo com a ajuda do libre-office-writer, seguindo o comando (abrir com o libre office writer):
lowriter "<path/to/file>"
De man libreoffice :
Name
libreoffice - LibreOffice office suite
SYNOPSIS
libreoffice [--accept=accept-string] [--base] [--calc] [--convert-to output_file_extension[:output_filter_name] [--outdir
output_dir] file]... [--display display] [--draw] [--global] [--headless] [--help|-h|-?] [--impress] [--invisible]
[--infilter=""] [--math] [--minimized] [-n file]... [--nodefault] [--nolockcheck] [--nologo] [--norestore] [-o
file]... [-p file...] [--print-to-file [--printer-name printer_name] [--outdir output_dir] file]... [--pt printername
file...] [--show Impress file]... [--unaccept=accept-string] [--terminate_after_init] [--view file]... [--web]
[--writer] [file...]
lobase
localc
lodraw
lofromtemplate
loimpress
lomath
loweb
lowriter
DESCRIPTION
LibreOffice (LO for short) is a multi-platform office productivity suite.