XSLT Create a hierarchical structure from a flat structure by using certain level criteria

Question

I want to create a XSD structure from an Excel output using XSLT. But my XSLT does not generate the hierarchical structure, correctly. It has some additional nodes in an element

Answer 1

Let me suggest a different approach to creating the nested hierarchy. To demonstrate, I will use the following minimized input:

XML

   
      
         1
      
   
   
      
         2
      
   
   
      
         3
      
   
   
      
         3
      
   
   
      
         2
      
   
   
      
         1
      
   
   
      
         1
      
   
   
      
         1
      
   
   
      
         2
      
   
   
      
         2
      
   

Applying the following stylesheet:

XSLT

will return:

Result

This works recursively with any number of levels.