so all u have to do is save the current progress on the current version and then go to the files and search ToT if it comes up then u have to copy ur save file in the folder and once done u have to paste the copied save progress from a document nor a folder once paste on a doc nor a fold u need to delete the current version u have and download the new version and then copy and paste the save progress file from a document nor folder where u pasted the save progress file and then once done go to the tot file and paste it there and once done open the app to see if it works.    

ps; i dont know if this is going to work  to other device but this method work on an android device hopefully this work and sorry if u dont get it too much so hope yall find this helpful ;D

Hey I know this is a old post but I wonder if you can give a more in depth guide on this, for example what app did you use?

zarchiver, it works well and saves time and is easy to use :D