The CHANGEBYTES function changes one or more occurrences of a specified string in a text expression to another string.
A TEXT expression in which bytes are to be changed. When text-expression is a multiline TEXT expression, CHANGEBYTES preserves the line breaks in the returned value.
A TEXT expression that contains one or more bytes that to be changed.
A TEXT expression that contains one or more bytes that to replace oldtext.
An INTEGER that represents the number of times oldtext should be replaced with newtext when oldtext appears more than once in text-expression. The default is to change all occurrences of oldtext.