# View OTP in Python

> Open an OTP presentation template in Python and export it to responsive HTML for viewing in a browser.

Source: https://products.aspose.com/slides/python-net/viewer/otp/
Updated: 2026-07-31



## View OTP using Aspose.Slides

[Aspose.Slides for Python via .NET](/slides/python-net/) is a presentation-processing library for opening, editing, and converting PowerPoint and OpenDocument presentation files.

## View OTP in Python

With [Aspose.Slides for Python via .NET](/slides/python-net/), you can load an OTP presentation template and export it to responsive HTML for viewing in a web browser.

### Python code for viewing OTP

```python
with slides.Presentation("presentation.otp") as presentation:
    responsive_html_controller = slides.export.ResponsiveHtmlController()
    html_formatter = slides.export.HtmlFormatter.create_custom_formatter(responsive_html_controller)

    html_options = slides.export.HtmlOptions()
    html_options.html_formatter = html_formatter

    presentation.save("presentation.html", slides.export.SaveFormat.HTML, html_options)
```

## How to view OTP in Python

Install Aspose.Slides for Python via .NET. See the [installation guide](https://docs.aspose.com/slides/python-net/installation/).

Ensure that the source OTP file is accessible to your application.

Load the OTP file into a `Presentation` instance.

Create a `ResponsiveHtmlController` instance for responsive HTML output.

Create an `HtmlOptions` instance and set its `html_formatter` property with `HtmlFormatter.create_custom_formatter()`.

Call `Presentation.save()` with `SaveFormat.HTML` to export the presentation.

Open the generated HTML file in a web browser to view the presentation.

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