A connection is a link between two or more spreadsheets inside your Google Drive. You can use the add-on to create connections. A connection allows you to transfer data between spreadsheets. These spreadsheets can be Google Sheets, Excel files, CSV or TSV files. They have to be uploaded to your Google Drive. Otherwise, the add-on cannot access them. You can use a connection to transfer an entire sheet tab or a selected range of rows or columns by using a filter. You can either transfer data by importing from another spreadsheet or exporting to another spreadsheet.