The filename doesn't need to be a character expression, the TYPE keyord is optional and a comma is the default delimiter and can be omitted.

Your command reduces to:

APPEND FROM Advisor.txt DELIMITED

If you do want to specify a delimiter, it needs to be a character expression. ie, "," instead of ,


>I want to convert a txt-file (comma-delimited) into a table with memofields.
>when I enter the command:
>APPEND FROM 'advisor.txt' TYPE DELIMITED WITH ,
>he answers me:
>No fields found to process.
>
>What do I wrong?
>
>regards