in order to help you more efficiently increase revenues from your site.
The spreadsheets are provided in .ods format, which is the Open Office spreadsheet format. Open Office is a multiplatform and multilingual office suite and an open-source project. Compatible with all other major office suites, it's free to download, use, and distribute.
The Marketing Metrics & Website Analysis Worksheets are from the Metric & Analyticial Marketing workshop at Internext by Jeff Random & Katie Smith from (THROB) 3ob.com
The workshop also included The Split Test Sample Size Calculator to help determine how much traffic you need to send to each test segment, based on how confident you want to be in the results of the test.