Range.ID Property (Excel)
Returns or sets a String value that represents the identifying label for the specified cell when the page is saved as a Web page.
This example sets the ID of cell A1 on the active worksheet to "target".
Later, the document is saved as a Web page, and the following line of HTML is added to the Web page. When the user then views the page in a Web browser and clicks the hyperlink, the browser displays the cell.