These are TextMate compatible syntax extensions meant for use in the Sublime Text editor.
These syntax extensions are for the BigFix Relevance & ActionScript languages
Copy the folders "BigFix ActionScript" and "BigFix Relevance" to the Sublime Text packages folder. They will appear in the "View -> Syntax" menu in Sublime Text.
Download Sublime Text here: http://www.sublimetext.com/
Read about syntax extensions for Sublime:
http://docs.sublimetext.info/en/latest/extensibility/syntaxdefs.html
http://sublime-text-unofficial-documentation.readthedocs.org/en/sublime-text-2/reference/syntaxdefs.html