Ribbon is MS Excel is nothing but a placeholder on which Tabs exists. Look at below picture, we have HOME, INSERT, PAGE LAYOUT .... etc. tabs on a panel and that panel is called Ribbon .
Each tab has it's relevant commands in the form of Toolbar icon that does a certain work. HOME tab has most frequently used toolbar icons.
In a way, Ribbon is better than traditional menu systems as most of frequently used commands are just one click away. However sometimes it is annoying to see the big horizontal ribbon bar that occupies almost 1/5 of the screen height.
To see the Ribbon display options, click on the icon (Ribbon Display Options) at the top-right side of Excel screen as shown below.
that shows Ribbon Display Options menu as shown below.
Let's see what options are there
To customize the Ribbon, right click the ribbon and select 'Customize the Ribbon'.
This shows below dialog box. Note that you would not be able to customize the default tab and its group.
To create a new tab, click on the 'New Tab' button and enter the Display name (in this case 'Your Tab', look at the picture below) in the Dialog box that appears. This will create a new tab. To rename the default name, click on 'Rename' button by selecting new tab.
Now we need to create a custom group under that tab (we can't directly create command under tab). Select the newly created tab and click on 'New Group' and then click on 'Rename' button again and select an Icon and give custom name to that group.
Now, select the commands to be added to that group from List of commands and click 'Add >>' button. To remove, just click '<< Remove' by selecting the command from right side List.
The newly created tab looks like below
The position of the tab can be changed by using Up and Down arrow at the right side of the dialog box.
How to remove custom commands, group and tabs?
To remove custom added commands, group and tabs; simply select them and click on '<< Remove' button.
To remove all customization in the tabs, click on 'Reset' button and select 'Reset all customizations' from the dropdown menu as shown in the picture below.
To create a new group in the default tabs, follow exactly the same appraoch as explained above.
Quick Access Toolbar is the top most bar, you see on the Excel screen.
Look at the first three options from context menu of the Ribbon.