What is xstring data type ?
Why do SAP stores the data in that format ?
Often we need to transfer heavy files between Web Applications in Java and SAP in ABAP. Information passed as XML will Increase the performance of your Java-ABAP applications interfaces. So the data that needs to be passed from ABAP needs to be XML Compatible and so we are using the XSTRING.
XSTRING is one of the predefined Data types in ABAP with variable length.
It is a Data type for variable-length byte sequence used in XML outputs
XSTRING Data types are used in Transformation of an XML Doument.