Yahoo Search Marketing advertisers have a temporary issue that will affect users using Internet Explorer 6.0. Users trying to download bulk sheets of greater than 2000 rows, may experience errors with their download that will result in a corrupt zip file. We recommend using Firefox as an alternative. Another solution would be to make smaller download requests. We are working on fixing this issue as soon as possible. We apologize for any inconvenience this may cause you. Please contact customer care if you have any additional questions.