# OnSave modifications for read-only files (obsolete)

<figure><img src="https://55290530-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FsuTTUicppaQuEkmSQ9eM%2Fuploads%2FHRQAKqpXrj80FqLNweMN%2Fimage.png?alt=media&#x26;token=629f0a47-f4fa-4eaa-a06b-1db7fa90f596" alt=""><figcaption></figcaption></figure>

Due to the changes to Inventor API, this feature is obsolete and will be removed in future releases of T4I.