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Convert MSG files online instantly, no sign-up required. You can convert your MSG documents on any platform—Windows, Linux, or macOS. Upload your file, choose the output format, and press convert. When the process is done, your XLSM file will be ready for download.
The MSG file's size and structure affect conversion time, though most files are processed in seconds. Advanced features allow you to convert password-protected documents and receive conversion results via email.
No matter where you are, convert your MSG documents seamlessly on any device, including smartphones. Available online anytime, this conversion app is completely free for basic scenarios.
Check our videoThe MSG is a file format used by Microsoft Outlook to store email messages, including attachments, headers, and metadata. It is primarily supported by Microsoft Outlook and other Microsoft Office applications, but can also be accessed using third-party tools like LibreOffice, Thunderbird, or specialized MSG viewers. The format stores data in a structured binary format, preserving email properties such as sender, recipient, subject, and timestamps, while also supporting advanced features like embedded objects, RTF formatting, and custom properties.
XLSM is a file format used for Excel spreadsheets that support macros, enabling automation and advanced functionality within the document. It is primarily used with Microsoft Excel but can also be opened by other spreadsheet applications like LibreOffice Calc and Google Sheets with limited macro support. The format is based on the Open XML standard, storing data, formulas, and VBA (Visual Basic for Applications) macros in a compressed ZIP container, allowing for efficient storage and advanced features like conditional formatting, pivot tables, and embedded macros.
You can also convert MSG into many other file formats. Please see the complete list below.