Users of mobile devices are often faced with a situation where they receive an attachment in the mail in a format .msgthat cannot be viewed using standard means. This format is the property of Microsoft Corporation and is intended exclusively for use with the app Microsoft Outlook on the Windows operating system. There is no built-in tool in the Android ecosystem that can correctly display the structure of such an email, including text, attachments and metadata.
However, the lack of native support does not mean that the message is impossible to read. There are several effective methods that allow you to open MSG file directly on your smartphone or tablet. We will look at the most reliable methods - from using specialized utilities to online converters that turn an opaque binary format into familiar text or PDF.
Why Android does not open MSG files by default
Format MSG is a complex binary container, designed to store all the attributes of an Outlook email. Unlike universal formats like PDF or JPG, the MSG structure is closed and specific to Microsoft products. The Android operating system, based on the Linux kernel, does not have built-in libraries for parsing this structure, so when you try to open such an attachment, the system throws an error or prompts you to select an application from a list, which often turns out to be useless.
The main problem is that standard email clients for Android, such as Gmail or the built-in Mail application, can only work with formats EML or text representations. They cannot extract the content from the MSG container without the help of a third party codec or converter. This creates a barrier for business users whose partners actively use the desktop version of Outlook.
⚠️ Attention: Don't try to simply rename the file extension from .msg to .txt or .doc. This will not turn the file into a readable document, but will only damage its structure, making data recovery impossible even on a computer.
To solve this problem, you need to use an intermediate link - software that will act as a translator. Such software either converts the file on the fly or saves it in a universal format that can be understood by any device. The specific method you choose depends on how often you encounter such attachments and whether you have access to the Internet.
If you work in a corporate environment, ask your system administrator to configure the server to convert incoming MSG files to HTML or PDF before delivery to employee mobile devices.
Specialized applications for viewing MSG
The most reliable way to solve the problem is to install a special application from the store Google Play. Developers have created a number of utilities that emulate Outlook on a mobile device. These apps can read headers, the body of the letter and, critically, extract attached files that may be hidden inside the MSG container.
One of the popular solutions is an application MSG Viewer for Outlook. It provides a user-friendly interface similar to a standard email app and allows you to view messages in their original formatting. Other applications, such as File Viewer for Androidoffer broader functionality, supporting hundreds of file formats, including office documents and archives.
- 📱 MSG Viewer - a lightweight application tailored exclusively for the Microsoft Outlook format, supports a dark theme.
- 📂 File Viewer - a universal processor for opening any files, including MSG, DOCX and XLS, useful for frequent use.
- 📧 Email Reader —focuses on email formats, allows you to export the text of the letter to the clipboard.
When installing such applications, it is important to pay attention to the permissions they request. To work correctly, they need access to the device's storage in order to read the file you downloaded. However, some unscrupulous developers may request excessive rights, such as access to contacts or microphone, which is a red flag.
Online converters: a quick way without installation
If you need to open a file one time and you don’t want to clog up your smartphone’s memory with unnecessary applications, online services will be an excellent solution. These sites allow you to upload a file .msg to the cloud, where it is processed by the server, and the result is returned to the user in a convenient format, for example, PDF, HTML or TXT.
The process of using such services is as simple as possible. You access the site through a browser Chrome or Firefox on your phone, select a file in the download manager and press the convert button. After a few seconds, the link to download the finished document becomes active. This saves time and does not require setting parameters.
Among the popular services are GroupDocs Viewer i Zamzar. They support batch processing and preserve original text formatting, including bold, lists, and tables. However, it is worth remembering that when using free versions, there may be restrictions on the file size or the number of conversions per day.
⚠️ Attention: Never upload files containing confidential information (passwords, passport data, financial statements) to public online converters. Data may be stored on the service’s servers and become available to third parties.
To increase security, you can use the private browsing functions in your browser, although this does not guarantee complete protection of data during transmission. If privacy is critical, it is better to use offline applications, which we discussed in the previous section, or ask the sender to forward the letter in a different format.
What to do if the online converter gives an error?
The error often occurs due to a corrupted file structure or the use of an outdated version of the MSG format (for example, from very old versions of Outlook). Try another service or ask the sender to save the letter as PDF before sending.
Use cloud storage and desktop versions
Sometimes the simplest solution is to use the Microsoft ecosystem. If you have an account Microsoft 365 or access to corporate mail via the web interface Outlook Web Appyou can bypass the problem of opening the file locally. Upload the MSG file to cloud storage OneDrive or attach it to a new email in the web version of Outlook.
The web version of Outlook has a built-in rendering engine that automatically recognizes the MSG format and displays its contents directly in the smartphone browser. You don't need to download or convert anything manually - just click on the attachment and it will open in an easy-to-read form. This is especially true for users who are already integrated into the Microsoft ecosystem.
| Method | Internet required | Preserving privacy | Complexity |
|---|---|---|---|
| Special. application | No | High | Low |
| Online converter | Yes | Low | Very low |
| Outlook Web | Yes | Average | Average |
| Desktop PC | No | High | High |
Another option is to transfer the file to your computer, open it there and send it back to yourself as PDF or a screenshot. Although this method seems archaic, it guarantees 100% preservation of formatting and data security, since processing occurs on a trusted device under the control of an antivirus.
The web version of Outlook is the safest online method, since file processing occurs in the protected circuit of your Microsoft account, and not on third-party converter servers.
Conversion to universal formats
If you plan to regularly exchange documents with PC users, it makes sense to agree to change the data transfer format. Ask your colleagues to save important emails not as MSG files, but to export them to PDF. This is the de facto standard for documentation, which opens on any device without installing additional software.
In Outlook itself on a computer, this is done through the menu File → Save As, where you need to select the format PDF or HTML. HTML is also a good alternative, as it preserves hyperlinks and email structure while remaining lightweight and editable.
To automate the process, you can use macros or rules in Outlook that will automatically convert all incoming or outgoing emails into the required format. This will save you from having to manually solve the problem of “how to open msg android” in the future and will speed up the workflow of the entire team.
- 📄 PDF —ideal for archiving and reading, the file looks the same on all devices.
- 🌐 HTML —suitable for letters with complex layout, links and images, opens in any browser.
- 📝 TXT —extreme measure, saves only text without formatting, useful for extracting clean information.
⚠️ Attention: When converting to TXT, you will lose all attachments, signatures and formatting. Use this method only if you only need the text of the message to copy or search.
Searching and managing MSG files on a smartphone
After you have downloaded a file or installed an application, it is important to be able to find this data in the device's memory. File managers on Android, such as Files by Google or ES Explorerallow you to filter files by type. Enter the extension .msgin the search to see a list of all available messages.
Often files are saved to a folder Download or to the directory of a specific email client. Knowing the exact path, you can open a document faster through a third-party application using the "Open with" feature. This is useful if the automatic file association has gone wrong and the system suggests opening MSG through a video player or notepad.
/storage/emulated/0/Download/message_from_boss.msgRegular cleaning of such files is also important, as they can take up space, especially if they contain large attachments. After reading and saving important information in a convenient format, the original MSG file can be safely deleted to free up space on your drive.
☑️ Checking the security of the MSG file
Is it possible to open an MSG file without the Internet?
Yes, this is only possible using installed viewer applications (for example, MSG Viewer) that run locally on the device. Online converters and the web version of Outlook require an active network connection.
Is it safe to open MSG files from unknown senders?
No, MSG files, like any other attachments, may contain malicious code or links to phishing sites. Always check the sender and use an antivirus before opening.
Why does an MSG file open as a blank document?
This may mean that the file was damaged during download, an incompatible version of the application is being used, or the email actually did not contain text (for example, it was deleted by the sender before sending).
Is there a difference between the EML and EML formats? MSG?
Yes. EML is an open MIME-based standard that is supported by almost all email clients. MSG is a proprietary Microsoft format that contains additional Outlook metadata and requires special tools for reading.