Can I edit an external XML file from a SWF-On disk not server

Hey all. I’m running an application off of a large XML file, and I want non-tech-savvy employees to be able to add/subtract from the entries that I have currrently. While I am fine editing XML on my own, I know some of them wont be, and so I am wondering if there is a way for me to be able to set up a SWF file to actually edit the XML rather than just reading it? I don’t know if this is even possible. Also if need be i’m not opposed to some server side script, but if there’s a way to do it without it, I would much prefer it.

Also, this applet would be running from disk not from a web server.

Thanks so much in advance!!!