Aspose.Email  for .NET

OLM File Viewer for .NET

View OLM without needing Microsoft Outlook or Thunderbird installed.

How to View OLM File Using C#

In order to view OLM file, we’ll use Aspose.Email for .NET API which is a feature-rich, powerful and easy to use API for C# platform to be used with any Viewer. Open NuGet package manager, search for Aspose.Email and install. You may also use the following command from the Package Manager Console.

Package Manager Console Command

PM> Install-Package Aspose.Email

Steps to View OLM via C#

Aspose.Email makes it easy for the developers to view the OLM file with just few lines of code.

  1. Load OLM file in an instance of MailMessage via Load method
  2. Call the MailMessage.Save method to save OLM in HTML format
  3. Call Process.Start with path to resultant HTML to load OLM content in default browser

System Requirements

Aspose.Email for .NET is supported on all major operating systems. Just make sure that you have the following prerequisites.

  • Microsoft Windows or a compatible OS with .NET Framework, .NET Core, Windows Azure, Mono or Xamarin Platforms
  • Development environment like Microsoft Visual Studio
  • Aspose.Email for .NET referenced in your project

C# code to view OLM

string output = System.IO.Path.GetTempPath() + Guid.NewGuid().ToString() + ".html";

// load the OLM file in an instance of MailMessage
using (var message = Aspose.Email.MailMessage.Load("template.olm"))
    // save OLM in HTML format
    message.Save(output, Aspose.Email.SaveOptions.DefaultHtml);
// load resultant HTML in default browser
  • Aspose.Email is a Microsoft Outlook and Thunderbird formats parsing solution. One can easily create, manipulate, convert email and storage formats such as MSG, EMLX, EML and MHT. Handling of email attachments, customization of message headers and implementation of different network protocols like POP3, IMAP & SMTP to send & receive emails is much easier. Its a standalone API and does not require Microsoft Outlook or any other software installation.

    Free App to View OLM

    Other Supported Viewer Formats

    Using C#, One can also view many other file formats including.

    EML (Outlook Email Messages)
    EMLX (Apple Format)
    ICS (iCalendar)
    MBOX (Electronic Mail Messages)
    MSG (Outlook & Exchange Format)
    OFT (Outlook Email Templates)
    OST (Offline Storage Files)
    PST (Outlook Personal Storage Files)
    VCF (Virtual Card Format)