Yes, of course. You can download your spreadsheets into a CSV format and drag and drop the file directly into the Sync function. Our technology is intelligent and should be able to read, map, and make sense of your CSV in any format. When you begin syncing, you will be prompted to "Map Fields", or match up Mascot column headers to the column headers in your spreadsheet. You can click on the columns on Mascot to align them to your own if they are incorrect. Once you are finished mapping, simply click "Save" ---> Sync Collection.