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. Click on either Insert 1 Column Left or Insert 1 Column Right. 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. Click on Delete Column .... The column will be deleted.