A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
The help example is incorrect.
The text of the help article is correct but not entirely helpful.
To update all Excel links in the workbook, simplest is just
ActiveWorkbook.UpdateLink Type:=xlExcelLinks
To update a specific link, say the first Excel link source
ActiveWorkbook.UpdateLink Name:=ActiveWorkbook.LinkSources(xlExcelLinks)(1)