Both the following commands fail

df1 = sqlContext.read.format("xml").load(loadPath)

df2 = sqlContext.read.format("com.databricks.spark.xml").load(loadPath)

with the following error message:

java.lang.ClassNotFoundException: Failed to find data source: xml. Please find packages at http://spark.apache.org/third-party-projects.html

I read several articles on this forum but none had a resolution. I thought Databricks has the XML library installed already. This is on a DBC cluster with "4.2 (includes Apache Spark 2.3.1, Scala 2.11)"