MSGtoEML and EMLtoMSG with E-Mail Converter Professional

With E-Mail Converter Professional, you convert Outlook MSG files into EML files. The Windows software works locally on the PC and processes individual messages, complete folders with subfolders, as well as recurring workflows via Command Line Interface.



Confidential email files are not transferred to an online service for this purpose. The reverse path from EML to MSG is also included if saved messages later need to be stored again in an Outlook-related archive.



E-Mail Converter Professional combines MSGtoEML and EMLtoMSG in one shared Windows application.

During email conversion, message text, subject, sender, recipients, date, and attachments are preserved for further use. MSG files usually come from Microsoft Outlook, while EML files can be read by many email programs, archive systems, and import processes. This is exactly where conversion from MSG to EML comes in: saved Outlook messages are transferred from an Outlook-bound format into a more widely usable email format.

Our MSG to EML Converter supports the sharing, backup, and migration of individual Outlook messages. In addition, the EMLtoMSG Converter handles the reverse path when EML files are needed again as MSG files for Outlook structures.

Convert email files between MSG and EML

MSG and EML are two file formats for saved email messages. An email collection consists of customer emails, project folders, support requests, invoices, old backups, or exported Outlook messages. If a program expects EML files while the existing messages are available as MSG files, the software performs the conversion. E-Mail Converter Professional processes individual files, folder collections, and technical workflows with fixed parameters.

Before conversion, you select the source, the output folder, and the desired target format. For a few messages, an individual selection is sufficient; for large archives, batch processing saves a great deal of manual work. For Outlook MSG files, the path to EML is the focus because this format is read or imported by many types of use. The reverse path from EML to MSG complements the application for mixed email collections.

MSG and EML as file formats for email messages

An MSG file contains a saved Outlook message with typical email data such as subject, sender, recipient, date, text, and attachments. Such files are created, for example, when emails are saved from Outlook to the hard drive. Switching to the EML format helps when the messages are to be reused in other email programs or archive systems. The conversion function is designed for this purpose.

EML files are supported by many email programs and import processes. They are suitable for individual messages that are stored independently of a complete mailbox. MSGtoEML is therefore an important step when Outlook messages need to be prepared for other programs. If, on the other hand, EML files are available that are needed again as MSG files, the reverse path is available.

MSGtoEML for individual files

The conversion of individual MSG files is suitable when only selected messages need to be transferred into EML files. This may involve a customer email, a saved invoice, a support case, or archived project information. You select the desired MSG file and specify the folder for the generated EML file. Afterwards, the message is checked, archived, or forwarded.

Individual files are easy to control. Before conversion, you can see which Outlook message is being processed, and after the process you can open the result directly in the target folder. This is suitable for targeted tasks where no complete folder collection is processed. This keeps each converted email assigned to a specific message.

Select MSG files and convert them to EML

The first step is to define the desired MSG file as the source. Then you select the storage location for the new EML file. This function is therefore suitable for users who want to extract individual Outlook messages from an archive. The content remains available as a standalone file and is opened in suitable programs.

Storage by project, customer, or time period simplifies later searching. The software creates an EML file from the selected Outlook file for archiving, import, or technical further processing. Attachments and header data are also checked with a typical test message. This shows before larger tasks whether the result fits your own filing structure.

MSG to EML Converter with target folder and file output

The target folder determines where the generated EML files are located after conversion. For individual messages, this is important because invoices, customer emails, or project information should be found quickly later. The software saves the result in the selected folder, separates the source file and output, and makes the generated EML file immediately checkable. A folder structure by customer, case, year, or project supports later assignment.

Batch MSG to EML Converter for complete folders

Batch mode is intended for larger collections. Archives contain numerous MSG files in folders and subfolders, for example sorted by customers, projects, years, or cases. Manual individual processing would be too slow and error-prone in such cases. With the Batch MSG to EML Converter, complete folder collections can be transferred from MSG to EML.

Batch processing saves a great deal of time, especially with old Outlook archives, project folders, or exported mailboxes. You select the source folder, the output folder, and the desired conversion direction. Included subfolders are included in the processing so that customer, project, and year folders are preserved. This creates an EML collection that follows the original structure.

MSGtoEML Batch Converter with subfolder processing

This subfolder processing is suitable for archives that have already been sorted by topic, customer, or project. The folder structure contains important information about the origin of the messages. When subfolders are included, this context is preserved after conversion. This helps with extensive Outlook MSG collections.

With individual conversion, each file would have to be selected separately. The batch function reduces this effort because complete directories are processed. In this way, many Outlook messages can be saved as EML files in one workflow. The generated files are then checked, imported, or archived.

Batch MSG to EML Converter for larger email collections

The batch function is needed whenever many Outlook MSG files are to be converted into EML files in one pass. Larger email collections are created through project archives, exported mailboxes, older backups, or collected business correspondence. With such data volumes, batch processing is better than converting individual messages. It handles this workflow for complete folders.

Before starting, the source folder, output folder, and free storage space are checked. Afterwards, the generated EML files are available in the target directory. Batch processing handles many files in one continuous operation. Extensive MSG archives can thus be prepared for email programs, archive systems, or migration tasks.

Use MSGtoEML offline instead of an online converter

Some online services advertise fast conversion from MSG to EML. This may be sufficient for private test files, but with business messages, contracts, customer data, or internal correspondence, an upload should be carefully reviewed. E-Mail Converter Professional works locally on the Windows PC, so MSG files are not transferred to an external server. Local processing is therefore interesting for confidential email collections.

With online converters, it often remains unclear how long uploaded files are stored, which servers are used, and how attachments are handled. Local software keeps the process within your own working environment and better matches internal data protection rules. The Windows application is therefore suitable for users who want to convert Outlook messages in a controlled way. For larger collections, batch processing without upload is also used.

What happens to attachments, subject, and email headers?

During email conversion, message text, file extension, subject, sender, recipient, sent date, received date, and attachments are crucial. This information should remain usable later in the archive or target program. Before a larger conversion, a short test with a few typical MSG files is recommended. This allows you to check whether your own email collection is processed as expected.

Even with batch processing, the output should be checked after the first run. Check individual EML files from different subfolders so that attachments, message content, and assignment are correct. Batch processing is valuable for such archive tasks when many files are to be processed in the same way. A brief check after conversion prevents later search problems in the archive.

EMLtoMSG as an additional conversion direction

In addition to converting from MSG to EML, E-Mail Converter Professional also helps with reverse conversion from EML to MSG. This is needed when saved EML files are to be transferred back into an Outlook-oriented archive. Individual EML files are selected and saved as MSG files. This keeps the software usable for mixed email collections.

Batch processing is also available for larger EML collections. The batch function processes complete folders with subfolders when many EML files need to be transferred into MSG files. The reverse direction is suitable for archive collections, backups, or data transfers from other email programs. For most users, the conversion of Outlook MSG files into the EML format is the main focus.

Batch EMLtoMSG Converter for complete folders

The Batch EMLtoMSG Converter processes diverse EML collections when many individual EML files are to be transferred into MSG files. This applies to archive folders, backups, exported messages, or email collections from other programs. Instead of selecting each file individually, a complete folder is defined as the source. Included subfolders are included in the processing so that the existing structure is preserved.

The Batch EML to MSG Converter is suitable for users who want to prepare EML archives for an Outlook-related filing system. After selecting the source folder and output folder, the included messages are transferred into the MSG format. This allows larger EML collections to be processed further with less manual work. A check of selected results shows whether message content, attachments, and assignment are available as desired.

Command Line Interface Converter for automated workflows

A Command Line Interface Converter is aimed at technical environments where conversions should not be started manually every time. E-Mail Converter Professional is integrated into fixed workflows, for example during data transfers, archive processes, or internal system routines. For both directions, this creates a controllable workflow outside the normal program interface. Other use cases trigger the start of the conversion.

In professional email archives, tasks arise that are repeated according to fixed rules. A folder is filled, a script starts the processing, and afterwards the converted files are available in the desired output format. The Command Line Interface Converter processes parameters directly via the command line. This allows MSG files and EML files to be integrated into technical processing chains.

Control MSG to EML Converter from other applications

Control from other types of use is needed when MSG files are to be transferred automatically into EML files. This happens in archive software, an internal administration application, or a custom import process. Control via the command line works with source path, target path, and conversion direction. The conversion thus becomes part of a larger technical process.

An external application starts the conversion as soon as new MSG files are available or a specific processing step has been reached. This allows saved Outlook messages to be transferred into EML files without having to set up the workflow manually each time. This control is valuable for data migration, archiving, and regular file processing. In combination with batch processing, larger directories are also processed automatically.

Integrate recurring conversions into scripts

Scripts are suitable for email files that need to be processed according to fixed rules. Batch processing is integrated into such workflows when complete folders are processed regularly. This is relevant for archive runs, data exports, or automatic transfers to other systems. The workflow is prepared once and then executed again when needed.

The reverse direction is also included in technical routines. A Batch EMLtoMSG Converter or a Batch EML to MSG Converter processes directories that are repeatedly transferred from EML to MSG. A clean folder structure is crucial so that source, target, and output format remain permanently assigned. This creates a predictable conversion process for email files.

System requirements and supported Outlook files

E-Mail Converter Professional supports Outlook files from Microsoft Outlook 2000 to Outlook 2024. This means saved Outlook messages from current and older working environments are processed. Users transfer individual MSG files or complete folders with subfolders into the EML format. Before larger archive runs, a test with typical messages, attachments, and different subject lines is recommended.

The software is aimed at Windows users who want to convert email files locally on their own PC. For large email archives, sufficient storage space should be available for the generated EML or MSG files. After a successful test, batch processing handles larger folder collections. This allows an MSG collection from Outlook 2000 to 2024 to be prepared for archiving, migration, or further processing.

Software development since 1994

Behind E-Mail Converter Professional is an experienced software company that has been developing Windows applications since 1994. This long-standing experience matters when it comes to file conversion, archiving, and processing sensitive data. With email files, reliable workflows, verifiable results, and stable processing are crucial. The local Windows application is aimed at users who want to convert Outlook messages in a controlled way on their own system.

The many years of development experience are reflected in functions such as batch processing, subfolder detection, and Command Line Interface. Such areas are important for companies, IT departments, and technical users when email collections should not be processed manually file by file. Larger archives can be processed folder by folder, while the command line triggers recurring workflows from other usage options. This makes E-Mail Converter Professional suitable for larger email collections and recurring conversion tasks under Windows.

Free download and test on Windows

E-Mail Converter Professional is available as Windows software for free download and can be tested with your own MSG files. Users test individual Outlook messages, complete folder collections, and technical workflows before larger email archives are processed. This shows whether email content, attachments, subject lines, and folder structure are transferred to the EML format as desired. The function is therefore suitable for a test run before further use.

For companies, it also matters whether the software works locally, whether folders with subfolders are processed, and whether automation via command line is available. Individual Outlook messages can be converted systematically, while larger collections are processed via batch processing. The batch function is also suitable when old archives, customer folders, or project directories need to be transferred to EML. Information about support, version, and updates helps with evaluation before the download.

Advantages of E-Mail Converter Professional at a glance

• Conversion of individual MSG files into the EML format
• Batch MSG to EML Converter for complete folders including subfolders
• Batch MSG to EML Converter for large email collections, archives, and project folders
• Local processing on the Windows PC without uploading sensitive email files
• Processing of existing folder collections so that project, customer, and year folders are preserved
• Suitable for email archiving, data migration, import preparation, and sharing saved messages
• Command Line Interface for automated workflows, scripts, and external applications
• Support for Outlook files from Microsoft Outlook 2000 to Outlook 2024
• Additional reverse conversion from EML to MSG for Outlook-related filing systems

Comparison of the most important functions

Instructions: Convert email files with E-Mail Converter Professional

1. Start E-Mail Converter Professional and select the desired conversion direction.
2. Use MSGtoEML or the MSG to EML Converter when MSG files need to be converted into EML files.
3. Select EMLtoMSG or the EML to MSG Converter when EML files need to be saved as MSG files.
4. Specify whether an individual file or a complete folder should be processed.
5. For complete folders, use the Batch MSG to EML Converter or the Batch MSG to EML Converter when an MSG collection is transferred to EML.
6. For EML folders, use the Batch EMLtoMSG Converter or the Batch EML to MSG Converter when many EML files need to be converted into MSG files.
7. Select the source folder or the individual source file.
8. For folder processing, check whether subfolders should be included.
9. Specify the target folder in which the converted files will be saved.
10. Start the conversion and wait until the process is complete.
11. Open the target folder and check the generated EML or MSG files.
12. For recurring workflows, the Command Line Interface starts the converter from other use cases or scripts.