You have to sign onto the TurboTax online account that you used to e-file the 2023 extension request - https://myturbotax.intuit.com/
Start the 2023 online tax return by entering some personal information then click on Tax Tools on the left side of the online program screen. Then click on Print Center. Then click on Print, save or preview this year's return. Choose the option Include government and TurboTax worksheets