if someone has given you a sequence.xml file, you also need the audio file they used.
if you have both
1) create a sequence using option 3) of the Open "New Musical Sequence"
select their music file
also click the 3rd option, "xLights XML".
You will eb prompted for their sequence.xml
Now you will have created a new music sequence using all teh effects and timing from the sequence.xml file you passsed in
One last task is renaming the otehr persons models to be using the models you have defined.
If that person had a model called BIG_MEAGTREE and your megatree is called MTREE, you rename their model to yours.
finally save it, you have now imported another persons sequence and made it your own. all nutcracker effects auto size to any model.
