The Format and Indent Files script
(batchFormatAndIndent.bat/batchFormatAndIndent.sh, found
in the scripts subfolder inside Oxygen's installation directory)
can be used to format and indent multiple files at once.
batchFormatAndIndent -i inputFilesAndDirs [-f filesFilter] [-s formattingSettingsFile] [-r] [-ih] [-v]
*.xml, t_*.dita)..xpr file
that contains project options or an .xml file that contains global
options. If not specified, the operation uses the application's default settings.