> ## Documentation Index > Fetch the complete documentation index at: https://docs.flowpayroll.ai/llms.txt > Use this file to discover all available pages before exploring further. # Onboard using data templates > Download Flow's data templates, fill them in with your payroll data, and import them yourself or send them to your onboarding contact to import. Flow's data templates hold everything Flow needs to take over your payroll: pay elements, employees, year-to-date figures, pensions and anything still in progress. Fill them in from your old provider's reports, then either import them yourself or send them to your onboarding contact and they'll do it for you. Before you start, make sure your organisation, HMRC details and pay schedule are set up in Flow. See [Switch to Flow Payroll](/guides/switching/overview). ## Watch how it works