I found out that an XLF file is just a ZIP folder that contains an XML doc and an 'xldoc' which is the Excel model that the template uses.
http://myxcelsius.com/2010/04/25/xcelsius-xlf-dissected/
I can figure out how to automate replacing the xldoc with our updated model, but is there any way to create the SWF file from the XLF through a script or possibly an SDK that would allow this?
We usually use XCelsius to import the new model Excel file, then export the XLF as a SWF, but we have 25 or so of these to do every month, so automating this process would help us out a lot.