how can i read the .hive file ?

**Question**
Please explain the problem you are running into.

**Code sample**
```dart
Provide a few simple lines of code to show your problem.
```

**Version**
- Platform: iOS, Android, Mac, Windows, Linux, Web
- Flutter version: [e.g. 1.5.4]
- Hive version: [e.g. 0.5.0]

The issue contains only the question about reading a .hive file and an unfilled template; it names no source files, tests, or entry points. First clarify which Hive file format and access method are involved, then document the supported way to read it once the expected behavior is established.

Written by the indexing model from the issue text.