I would say it depends. You may have multiple conditions you want to exit for...

>>>>>>Does a scan endscan loop exit at the bottom of the loop or at the top?
>>>>>
>>>>>It goes from top to bottom.
>>>>
>>>>Yes, that's right. But, a do while loop loops and at the end it exits the loop at the top. I believe that a for next loop runs and exits at the bottom.
>>>
>>>I don't see why it's important. One should not write code based on these assumptions. Either you exit loop specifically (by Exit) or you don't care.
>>
>>It can matter. For instance the code between a do while and enddo will not be calculated on the final pass because that pass does not occur. That can be useful from time to time.
>
>It's controlled by While expression, i.e. if this expression is False (for a record?) then code doesn't fire anymore.