I entered all my 2017 medical receipts last year but only claimed about half the year. How do I carry forward unclaimed receipts to 2018 download version of TurboTax?

I don't want to have to reenter all the medical receipts for that latter 8 months of 2017, entered last year, which I will be claiming along with the first 4 months of 2018. How do I get them into my 2018 tax return I'm working on?