# Open Documents with an Offset

> TX Text Control ActiveX supports saving documents with a byte offset to embed custom file headers. In TX Text Control .NET for Windows Forms, a FileStream with its Position property set to the header length can be passed to the Load method to open these offset-prefixed files.

- **Author:** Bjoern Meyer
- **Published:** 2005-12-12
- **Modified:** 2026-03-05
- **Description:** TX Text Control ActiveX supports saving documents with a byte offset to embed custom file headers. In TX Text Control .NET for Windows Forms, a FileStream with its Position property set to the header length can be passed to the Load method to open these offset-prefixed files.
- **1 min read** (152 words)
- **Tags:**
  - ActiveX
  - .NET
  - Sample
- **Web URL:** https://www.textcontrol.com/blog/2005/12/12/open-documents-with-an-offset/
- **LLMs URL:** https://www.textcontrol.com/blog/2005/12/12/open-documents-with-an-offset/llms.txt
- **LLMs-Full URL:** https://www.textcontrol.com/blog/2005/12/12/open-documents-with-an-offset/llms-full.txt

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TX Text Control ActiveX offers an *Offset* parameter to export a document with a specific file offset position. This offset can be used to save a custom file header that could contain additional information. Many customers have been asking how to open these documents with TX Text Control .NET for Windows Forms.

A very simple way to achieve this is to use a *FileStream* that can be directly opened using the *Load* method in TX Text Control .NET for Windows Forms. The following code snippet illustrates how to open a file with an offset of 30 bytes. The *Position* property of the *FileStream* can be used to set the current position in the stream. This position indicates where TX Text Control .NET for Windows Forms starts reading.

```
Dim newFile As New System.IO.FileInfo("c:ile.tx")
Dim FileStream As System.IO.FileStream = newFile.OpenRead()
FileStream.Position = 30
TextControl1.Load(FileStream, TXTextControl.BinaryStreamType.InternalFormat)
```

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## About Bjoern Meyer

As CEO, Bjoern is the visionary behind our strategic direction and business development, bridging the gap between our customers and engineering teams. His deep passion for coding and web technologies drives the creation of innovative products. If you're at a tech conference, be sure to stop by our booth - you'll most likely meet Bjoern in person. With an advanced graduate degree (Dipl. Inf.) in Computer Science, specializing in AI, from the University of Bremen, Bjoern brings significant expertise to his role. In his spare time, Bjoern enjoys running, paragliding, mountain biking, and playing the piano.

- [LinkedIn](https://www.linkedin.com/in/bjoernmeyer/)
- [X](https://x.com/txbjoern)
- [GitHub](https://github.com/bjoerntx)

---

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