XSLT - How to keep only wanted elements from XML

Question

I have a number of XML files containing lots of overhead. I wish to keep only about 20 specific elements and filter out anything else. I know all the names of the elements I

Answer 1

In XSLT you usually don't remove the elements you want to drop, but you copy the elements you want to keep:

The example above copies only currency and currency_code3. The output is as follows:

   
      somecurrency
      
   

Note: I added a namespace declaration for your prefix ns.

If you want to copy everything except a few elements, you may see this answer