Most HVAC design software (e.g., Trane Duct Designer, Elite DuctSize) that includes the DFDB allows you to export fitting data to .
Several commercial HVAC design software packages (e.g., , Carrier HAP , Elite Software ), as well as free tools like HVAC Solution or openDuct , include the ASHRAE database. Many allow export to CSV/Excel. ashrae duct fitting database excel link
Several HVAC tools provide Excel add-ins already linked to ASHRAE DFDB: Most HVAC design software (e