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MID$ Function Details
 
Syntax
  MID$(stringexpression,start[,length])
 
  Argument           Description
  stringexpression   The string expression that the substring is
                     extracted from. This can be any string
                     expression.
  start              The character position in stringexpression where
                     the substring starts.
  length             The number of characters to extract.
 
The arguments start and length must be in the range 1 to 32,767. If length
is omitted or if there are fewer than length characters to the right of the
start character, the MID$ function returns all characters to the right of
the start character.
 
If start is greater than the number of characters in stringexpression,
MID$ returns a null string.
 
Use the LEN function to find the number of characters in stringexpression.