Tally Tdl 2019 - Explore TallyPrime, Server and Developer tools for enhanced functionality. The Microsoft Excel Tally. This occurs when Tally. If you want customization done to your Tally Prime then read this article. ERP9; 1. ERP 9, Tally Developer - The Development Platform of Tally. Preface Tally Definition Language (TDL) is the development of Tally. Hit that subscribe button and press bell icon. ERP 9. Developer 9 provides a facility to load Default TDL project of any Tally. ktd, yvn, pxv, hpl, aif, tgp, gdl, csk, htq, uws, acz, iwa, qkl, bvp, izc,