Some characters and symbols must be encoded for a proper XML syntax:
| Description | Character | XML representation |
|---|---|---|
| Less Than | < | < |
| Greater Than | > | > |
| Quote | " | " |
| Ampersand | & | & |
| Apostrophe | ' | ' |
Binary data must be encoded in hexadecimal notation:
| Description | XML representation |
|---|---|
| CR (carriage return) | 
 |
| LF (line feed) | 
 |
| NULL-byte | � |
| Any byte hex code | &#x<byte hex code>; |