Fivetran is a data integration tool that automates the extraction and loading of data from various sources to a data warehouse. It partners with Snowflake and Tableau to provide analytics templates, making it easier for users to analyze their data. The guide outlines steps to set up NetSuite dashboards using Fivetran Analytics Templates, including setting up accounts, connecting NetSuite data via Fivetran, syncing tables, and configuring Tableau workbook with Snowflake credentials. Once completed, the dashboards will populate with NetSuite data for analysis.