This is a paid asset, but now you can download BG Database Free.
Detail this asset from Unity Store: Original Link
BG Database v1.6.7 (Latest version)
BG Database v1.6.3
BG Database v1.6.1
BG Database is pure C# (without SQL), InMemory database for your game data with export/import to Excel / OpenOffice / LibreOffice and Google Sheets, Save/Load support, Unity assets fields (with Resources/AssetBundles/Addressables loaders), Playmaker/Bolt integration
Tested on IOS, Android
Easy Export/import to Excel and Google Sheets
Over 50 field types
Code generation
Data binding (with templates)
Game saving and loading support
Lazy loading
Playmaker and Bolt support
Modding support
Live update
Localization addon Asset Store page
Home page| Support thread| Localization addon
Third-Party components:
SimpleJson (under MIT license)
LightCsvParser (under MIT license)