What does it mean to receive a null value when attempting to convert a byte array to an XML document?

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Receiving a null value when attempting to convert a byte array to an XML document means that the byte array does not contain XML data or the conversion process failed to create a valid XML document from the byte array. It could also mean that the byte array is empty or uninitialized. This could happen due to various reasons, such as an invalid or corrupted byte array, an unsupported encoding type, or an issue with the XML parsing or creation process.