Any text containing numbers must be enclosed in double quotation marks if you do not want it to be interpreted as a number.
, new text
text is text of which a part is replaced.
position is the position within the text where the replacement begins.
length is the number of characters in text to be replaced.
new text is the text that replaces text.
. One character at position 1 is replaced by the complete new text
Parent topic: List of functions