What is the most logical next event?

How to add columns on google sheets on pc or mac
Go to https: // sheets. Google.com in a web browser.
This will bring up a list of spreadsheets you've worked on recently.
If you're not already signed in to your google account, you'll be prompted to do so now.
Open the spreadsheet you want to edit. There are three ways to do this : If the file is already in your google drive, you'll see it in the file list.