definiens: means all of Seller ’s written files, documents, instruments, papers, books, reports, records, tapes, microfilms, photographs, letters, budgets, forecasts, plans, operating records, safety andenvironmental reports, data, studies and documents, Tax Returns, ledgers, journals, title policies, customerlists, regulatory filings, operating data and plans, research material, technical documentation ( designspecifications, 3engineering information, test results, maintenance schedules, functional requirements, operatinginstructions, logic manuals, processes, flow charts, etc . ), user documentation ( installation guides, usermanuals, training materials, release notes, working papers, etc . ), marketing documentation ( sales brochures, flyers, pamphlets, web pages, etc . ), and other similar materials related to, used in, or held for use inconnection with the Business or any of the Acquired Assets, in each case whether or not in electronic form