# offset

> The offset from the start of the file to the first byte of the range belonging to the Packed Asset.

## Definition

* **Type:** Property
* **Namespace:** [UnityEditor.Build.Reporting](/engine/6000.7/script-reference/unityeditor/build/reporting.md)
* **Assembly:** UnityEditor.CoreModule

```csharp
public readonly ulong offset { get; }
```