Note: Sometimes you need to show hidden folders in Windows. To do that;
Open File Explorer from the taskbar.
Select View > Options > Change folder and search options.
Select the View tab and, in Advanced settings, select Show hidden files, folders, and drives and OK.
2-) Use Cheat Codes If you Completely Lost Your Save Files
If you think you have completely lost your saved data, you can use the following cheat codes. When starting the profile, choose any of the following names, depending on how much money and experience you want to start with.
Code – Effect
Warning: When you first start the game, you must decline to play the tutorial. If you don’t, the game may crash.
cms2021promo – This code will promote you to level 36 and give you an extra $500.000 cash bonus in the game.
cms2021stage1 – This code will promote you to level 5 and give you an extra $4.000 cash bonus in the game.
cms2021stage2 – This code will promote you to level 12 and give you an extra $50.000 cash bonus in the game.
3-) Update Your Game
Try updating your game always to get a stable gaming experience with fewer bugs or errors. Sometimes an outdated game version can cause multiple issues with the game saves. To ensure that your game saves aren’t going to be affected, follow the steps below:
Launch your Origin client > Click on My Game Library.
Right-click on The Sims 4 > Select Repair.
Once done, right-click on the game again.
Choose Update Game.
If any latest update is available, the client will automatically download and install it.
Finally, run The Sims 4 game and check whether the save file missing issue has been fixed or not.