<!here> Hi Everyone... When I try to download a report as Excel I always get this warning "File format and extension of 'orders.xls' don't match"... Is there a way I can bypass this check for files from NetSuite? Thank you

That's because NS excel files are actually XML files encoded as Xls. There wouldn't be a way to change it just for NS files because that error is coming from your Excel, not NetSuite, and Excel doesn't know where you downloaded it from.