I think it is not possible.
in my opinion you should open you table as exlusive before zap it
regardless the exclusive setting of your environment.
Rmember that you don't have to close the table and reopen it, just select
the table area and open it exclusive.
HtH
Alessio

>Hi.
>I have all my Tables set up in DE, and Set Exclu is off.
>However, there is one case where I need to be able to temporarily open the table exclusively, because I want to Zap the file.
>
>If I set exclu on, it does not work for tables already opened.
>How do I do this for a table that is already opened, Zap the file, and then go back to using it non exclusively.
>
>regards,
>
>Gerard