tab

This contains all the tab nodes representing all the tabs.
This element is a container for all the changed relating to existing or new tabs on the Ribbon.
The tab element represents a single tab. In the object model this is RibbonTab.
To display an ampersand use &&

<customUI> 
   <ribbon> 
      <tabs> 
<tab id="CustomTab" label="My Tab"> 
   <group id="SimpleControls" label="My Group"> 
      <button id="Button1" imageMso="HappyFace" size="large" 
         label="Large Button" 
         onAction="ThisWorkbook.MyMacro"/> 
   </group> 
</tab>

ControlId Property

Gets or sets the unique name of a tab
This can only be changed by changing the Name.

CustomId Property

This can only be changed by changing the Name.

Groups Collection

This contains all the group controls created by the add-in that are associated with the tab.
It does not include built-in groups if the tab is a built-in tab.

Attributes

The insertAfterMso, insertAfterQ, insertBeforeMso, and insertBeforeQ attributes are mutually exclusive.

enabled	Specifies whether the control is enabled or not.
id	Specifies the identifier for a custom control. All custom controls must have unique identifiers.
idMso	Specifies the identifier of a built-in control.
idQ	Specifies a qualified identifier for a control.
insertAfterMso	Specifies the identifier of a built-in control that this control should be inserted after.
insertAfterQ	Specifies the qualified identifier of a control that this control should be inserted after.
insertBeforeMso	Specifies the identifier of a built-in control that this control should be inserted before.
insertBeforeQ	Specifies the qualified identifier of a control that this control should be inserted before.
keytip	Specifies a string to be used as the keytip for this control.
label	Specifies a string to be used as the label for this control.
screentip	Specifies a string to be used as the supertip for this control.
showImage	Specifies whether this control should display its image.
showLabel	Specifies whether this control should display its label.
supertip	Specifies a string to be used as the supertip for this control.
tag	Specifies an arbitrary string that can be used to hold data or identify the control.
visible	Specifies whether the control is visible or not.

Children

group

Callbacks

getImage
getImageMso
getKeytip
getLabel
getScreentip
getSupertip
getVisible

' VBA
Public Sub Tab_OnGetVisible(ByRef control As Office.IRibbonControl, _ 
                            ByRef Visible as Variant) 
End Function 

' C#
bool Tab_OnGetVisible(Office.IRibbonControl control) 
{ 
}