do shell script "printf '%s\n' "<?xml version=\"1.0\" encoding=\"UTF-8\"?> <scratch project=\"TEST\"> <file>W:\Sequences\087_TLD_TL_Taking_The_Lead\Shots\TLD0640\Versions\MOV\TLD0640_v0173.mov\</file> </scratch>" > ~/Desktop/Test.xml"

set XML_Content to "<?xml version="1.0" encoding="UTF-8"?> <scratch project="TEST"> <file>W:\Sequences\087_TLD_TL_Taking_The_Lead\Shots\TLD0640\Versions\MOV\TLD0640_v0173.mov\</file> </scratch>"

do shell script "printf '%s\n' " & (quoted form of XML_Content) & " > ~/Desktop/Test.xml"