That topic really doesn't tell us much about your question, does it?
UseAMeaningfulSubjectLine
And your question doesn't seem to have much to do with XML, except that it appears to be about an element of some XML document.
CarefullyChooseOneForum
And you didn't say anything about the context in which this single XML element occurs in, or what application is going to be using it.
TellTheDetails
However my guess is that "." means "the current working directory" in this case.
