Forum Discussion
New columns I've just noticed
Hey all, I'm first time poster so please cut me a little slack, it's very much appreciated. I've just bought this phone so I'm still very much learning to use it with various apps etc. So using...
"They" didn't do anything. You must have added the outline (that's how it's called) yourself or someone else did. More about outlines in the link below.
Outline (group) data in a worksheet - Microsoft Support
You mention that you are using Excel on a mobile. I believe you cant remove an outline on that platform, so you'll have to do that on a desktop or in the web version. Both are mentioned in the link.