# cavestory save lib
[](https://docs.rs/cavestory-save-lib/latest/cavestory_save/)
modify major values in CaveStory(plus)'s `profile.dat`
You may want to check [Fandom wiki](https://cavestory.fandom.com/wiki/Cave_Story_Wiki) for items.
## Note
As `impl From ...` in `src/items/*.rs`, if you get invalid value from `profile.dat`, it will set to `None`(Nothing for BGM).
## TODO
- [ ] flags ([`bitvec`](https://docs.rs/bitvec/latest/bitvec/)) - currently not in plan, as modify this may break game experience