File upload automation

Im trying to upload specific files in a loop, will that work? I was to use a variable to select the file and have it upload during the loop, how can I do that?

See here: automating file uploads

didnt really answer my question…

Then I did not understand the question. can you add a macro that shows the issue?

I havent made one because i dont know how to do it. I want to use a ${col1!} varible to select a specific file while in a loop