Modular Programming is good attitude of best programmer. We often need to keep our code in modular approach so that is would be easy to maintain  and update or remove dead code and also it ease the process of bug tracking. XML and XSL  processors provide freedom to import multiple imports to process the same  XML  document. In the following  XML  data we have data from collage where student's and teacher's data is given. But we want to process the same  XML  data with different XSL files. Here in this example we want to show the teacher data in red background color and student data in green background color. Data.xml 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 <?xml version = "1.0"?> <?xml-stylesheet type = "text/xsl" href = "RootXSLT.xsl"?> <data> <DataFor name = "Student" id = "001" > <firstname...