Files picking one after another

Hi,

We have a scenario which includes File and Proxy (receiver). The FTP will have 3 files places in it. they might be together. Now PI has to process these files, say File1, File2, File3 one after the other in a order. PI needs to pick the File1 process it and then pick the File2 and so on.

I thought of using ATP and polling interval, but then if the first file fails, this wont work out.

So can anyone tell me if there is a way for this?

Regards,

Lavanya R