To Insert a Column
On the Desktop App
1. Click on a letter at the top of the workbook and right-click on it.
2. Select 'Insert' and a column will be inserted.
On Microsoft 365 Online
1. Click on a letter at the top of the workbook and right-click on it.
2. Hover over 'Insert' and when a new menu appears, click on 'Sheet Columns' and a column will be inserted.
To Delete a Column
On the Desktop App
1. Click on a letter at the top of the workbook of the column you wish to delete and right-click on it.
2. Select 'Delete' and that column will be deleted.
On Microsoft 365 Online
1. Click on a letter at the top of the workbook of the column you wish to delete and right-click on it.
2. Hover over 'Delete' and when a new menu appears, click on 'Sheet Columns' and that column will be deleted.