Automation Object Error - is there any way to get more info?

Hi

I have some code running on a client’s site which it reading data from Excel Spreadsheets. It works fine on most PC’s but on a handful of them they usually (but not always) get an automation object error at the line:

Set xlSheet = xlBook.worksheets(“Data”)

where Data is a valid tab in the excel file

It’s an odd one as it’s not happening all the time. Is there any way of interrogating either Excel, or the error to find more information about what’s going on?

Thanks

Kieran