Adwords Editor & Excel: /align-your-bids-with-your-cpa-within-5-minutes-using-adwords-editor-and-excel/
Desktop Editors: https://www.google.com/intl/en/adwordseditor/
https://advertising.microsoft.com/support-center/adcenter-downloads/adcenter-desktop
Efficient big management: spreadsheet fun!: /efficient-bid-management-spreadsheet-fun/
