EPPlus-更新自定义功能区元素

Question

I have a excel file which contains several items in a custom ribbon. I've added these custom elements with Microsoft's " Custom UI Editor for Microsoft Office ", my customization looks something like the following:

<?xml version="1.0" encoding="UTF-8"?>
<customUI xmlns="http://schemas.microsoft.com/office/2009/07/customui">
   <ribbon>
      <tabs>
         <tab id="XXX" label="XXX" insertAfterMso="TabInsert">
            <group id="YYY" label="YYY">
                <button id="btnXXX" 
                    label="XXXX" 
                    imageMso="PivotTableNewStyle" 
                    size="large" 
                    onAction="ZZZZ" 
                    screentip="XXX" 
                    supertip="XXX" />
            </group>
        </tab>
      </tabs>
   </ribbon>
</customUI>

I would like to modify(Add remove elements, change elements) this header with EPPlus, is this possible? If so how would it be done?

Answer 1

I have not found a way to do this in EPPlus, but I have found a way to edit it with the " DocumentFormat.OpenXml " library. Specifically to access that portion of the file I use the following code:

((SpreadsheetDocument)document.WorkbookPart.OpenXmlPackage).RibbonAndBackstageCustomizationsPart

I'm still not sure if it can be done in EPPlus. Maybe in a future version...