mtarler Hello I am new to MS-365, since 7/1/24, and have been using MS Office Home & Business 2019 since it came on my HP laptop. I noticed your response about a blue line with around a cell with a blue circle containing my initials from Aug. 2023. I tried your suggestion of closing the secondary file, but the blue cell marker was still appearing after 2 hours. I found another solution, by accident, that may help other new users. I was using my iPad for the secondary view of my spreadsheet, and I guess when I closed the file it didn't close all the way. Once I reopened and clicked on another cell and then closed the worksheet the 2nd view notification went away.
My question as a follow up is how do we make our own devices identify one another? I signed in through MS-365 logo and would think once I entered my credentials it would automatically identify each piece of equipment. Any thoughts?