When I click on the hyperline Export to Excel the following error is displayed:

Response object error 'ASP 0156 : 80004005'

Header Error

/auditor/FixedAssets/DisplayTest ToExcel.asp, line 31

The HTTP headers are already written to the client browser. Any HTTP header modifications must be made before writing page content.

Any suggestions of what may be wrong?

This error is created because it is trying to do something server side.

If you have already written something to the browser it will not work.

Make sure you complete the HTML to Excel action first then write to your browser.