You can also use the up/down arrows in the top row of grey checkboxes to sort the columns alphabetically or numerically. csv and re-upload.In Choose Fields, confirm your list and uncheck the first row if you have headers. If you get an error, try saving your file as a. Chat with us, powered by LiveChatHomeHelpDesign And Print Online Mail Merge Import Data From A Spreadsheet Import Addresses From Excel Or NumbersCall Us: (800) 462-8379Monday to Friday 6am – 5pm PTFilter By TopicAll Support TopicsAll Support TopicsPopular TopicsTemplate SupportProduct SupportOrder SupportAccount SupportContact InformationDesign & Print Online Mail Merge, Import Data from a Spreadsheet, Import Addresses from Excel/NumbersFirst, be sure your data in the spreadsheet is arranged in columns.Then, in step 3 Customize On the left click on Import Data and select Start Import/Merge Next, select Browse for File and locate your spreadsheet (Available file types.