Howdy! how do i get a copy of the extension I filed using turbotax?

To access your current or prior year online tax returns sign onto the TurboTax website with the User ID you used to create the account - 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

If you have not yet paid for TurboTax you will be prompted to pay when you print.   You cannot print until you pay for the program, if you used a paid version of the program.