nFrom - Position in the file where string will be
inserted.
nLen - Number of bytes that are replaced. If this
parameter is zero, HBEReplace inserts string before
position nFrom.
sBy - A string that is inserted.
Examples:
'Inserts string on top of file
HBEReplace(1,0,"begin")
'Inserts string to end of file
position = FileSize(HBEFullPath()) + 1
HBEReplace(position,0,"end")
'Replaces first four characters with string
HBEReplace(1,4,"string")
Return value:
If the function succeeds, the return value is True. If the
function fails, the return value is False.
