We would like to upload the rates file purchased from Avalara into our e-commerce platform and integrate the two.
While it is possible for the rates tables to integrated into an erp or e-com platform, Avalara support can not assist in dev work to have this accomplished. Avalara essentially supplies the rates data and the client takes it from there. It is possible however through the DLL (a separate purchase) and integration that it could call through the DLL to the local rates database for calculation.
Please feel free to discsuss this with your Customer Account Manager.