Having to go into each list one at a time is too time-consuming.
We clear and re-upload 14 lists every week. Doing this one at a time will be a much longer process.
Currently the only way to clear a data field in a contacts info is to manually go in to each contact and delete the fields. That is SOOOOO very time consuming it's ridiculous! I want to be able to clear a field by simply uploading an empty cell in my Excel spreadsheet.