Calling multiple rows of data for input at once

[bmeye4]

I am using a macro to link data (18,000 rows) to a website for automatic input. I've figured out how to call one line "A3" and it will go to the website, log in, input data and hit submit. I am at a loss how to get it to then input the next row of cells "B3" then hit submit, then C3... etc, I want it to do about 5-10 at a time.

Any ideas? Will I need to clear each line on the website first, prior to input of next row, or will my new row of data override current data?