>How do you check to see if a file is open without attempting to open it first?
>
>I looked at FOPEN(cFileName, nAttribute) and wonder if this would do the job, or is there more to this? I have done this a long time ago, I think.

Yes, FOPEN should work for you.

For tables, though, the best way is to try to open in try/catch block.

What exactly is the purpose? I think there are ways of figuring if the file is opened, but they may be non-trivial.