Add ribbon menu to certain macro-based workbook to run macro, will only be available in that workbook. To any xlsb or xlsm manually (not using RibbonXEditor)
	> Rename extension from xlsb or xlsm to zip
	> Extract this new zip to a folder ...
	> Add folder /customUI
	> Add file customUI.xml inside it
		Use xml block below to insert 1 command and 1 separator after it
	> Modify /_rels/_rels file to have additional line to refer to this customUI.xml [below example]
	> Zip them again
	> Rename extension zip to xlsb or xlsm as used in original
	> Open in Excel



' CustomUI.xml file content
<customUI xmlns="http://schemas.microsoft.com/office/2006/01/customui">
	<ribbon>
		<tabs>
			<tab id="TabANmars" label="ANma">
				<group id="TabGroup" label="Group1">
					<button id="button1" size="large" label="Select" imageMso="AccessTableContacts" onAction="CompanyList_StdCI_CustomSelection" />
					<separator id="Sepa1" ></separator>
				</group>
			</tab>
		</tabs>
	</ribbon>
</customUI>




' _rels file content
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships">
<Relationship Id="R0e21939cdfc0485a" Type="http://schemas.microsoft.com/office/2006/relationships/ui/extensibility" Target="customUI/customUI.xml"/>
<Relationship Id="rId3" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/extended-properties" Target="docProps/app.xml"/>
<Relationship Id="rId2" Type="http://schemas.openxmlformats.org/package/2006/relationships/metadata/core-properties" Target="docProps/core.xml"/>
<Relationship Id="rId1" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/officeDocument" Target="xl/workbook.bin"/>
<Relationship Id="rId4" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/custom-properties" Target="docProps/custom.xml"/>
</Relationships>













Helpful links ...
https://github.com/OfficeDev/office-custom-ui-editor
https://docs.microsoft.com/en-us/archive/msdn-magazine/2007/june/advanced-basics-using-ribbonx-from-visual-basic
https://github.com/fernandreu/office-ribbonx-editor
https://medium.com/codex/how-to-build-a-custom-ribbon-in-excel-a3bc531551e1
https://bert-toolkit.com/imagemso-list.html