The doPost() method carries out all the details. tsv files, etc.) jsFile-image works with many image formats jsFile-txt process the file as a simple text
jsFile-dsv for Delimiter-separated values format (.csv.You can upload CSVs with either the following 3-column or 4-column format. This means you may not be able to import CSVs from certain banks.
However, there is an Export button on the webpage that apparently runs a Javascript routine to download a CSV file.