mega.io link format of hosted file
A typical MEGA link format for a hosted file looks like this:
```
https://mega.nz/file/<file_id>#<file_key>
```
- `<file_id>` is a unique identifier for the file.
- `<file_key>` is the decryption key necessary to access the content of the file.
For example:
```
https://mega.nz/file/abc123#def456
```
When accessing a MEGA link, the file ID and key are used together to retrieve the file and decrypt it for viewing or download.


