Software development problems lead to the loss of user files, can I go to court?

If the software is really original and independently developed by you, the function and structure of the software are similar to those of others, which will not affect your exercise of copyright on the software.

So this is not infringement, and software copyright can be registered voluntarily (note: software copyright is automatically protected by copyright law after development, and it is not necessary to apply for registration like patent right and trademark right).

If others have not applied for patent protection, you can also apply for patent protection for the software (patents follow the principle of applying first).