XML transformations using XSLT

Hello,

I am not very familiar with the complete potential of XSLT and am trying
to find out if I can use it to solve the problem that I have on hand.
Can I use only XSLT if I need to merge two XML documents based on
certain criteria or alternatively split an XML document into two or more
docs again based on certain criteria. Can XSLT be used to implement
generic algorithms or is it highly specific to the document on hand ???

Regards,
Chitra

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