The short answer is yes! But there are some caveats. Flatfile regularly processes files and spreadsheets with over a million rows; however, the viability of doing this depends on both the number of rows and the number of columns in the data you need to process. Since the shape of everyone’s data is different, if you routinely need to upload files with more than one million rows of data, connect with us at support@flatfile.com and we can give you an answer specific to your needs.