how to efile a 2022 and 2023 return

A cpa has advised us to file my mother-in-laws 2022 and 2023 tax returns which have 0 tax owed and no withholding.  Since she didn't owe anything, we did not file these returns when due.  She has recently passed away and the cpa we hired to do the final return advised us to file these.    When I open these returns, it Turbotax has a message that the efile season is closed.  is there anyway I can efile for these years with the turbotax return?