A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Hi TomB55,
Thank you for bringing up this query to our attention. As of now, we can only change the calculation from Automatic to Manual using the desktop Excel application. However, this a great idea for users that are using Excel for Android and tablet so they can manage the value that they are entering. In line with this, I highly recommend that you submit a feedback to our Excel for Android UserVoice page. Our developers will collate and review suggestions and incorporate them into product planning discussions.
Thank you for understanding. Should you have questions, please don't hesitate to reply.