Bro this is your lucky day, so this is the solution:
-Every AE version is able to dowgrade projects by about 2 versions back,
so all you need to do is:
-install AE 2025 and AE 2023
-open the 25 project in 25 and then click on:
File–save as–save a copy as 23.0
then open the project on AE 23 and downgrade it again to 18.0 as in the screeshot below
have a nice day bro and lemme know if you enjoy the help! <b style=”font-family: inherit; font-size: inherit;”>️🔥