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What is MSG?

Outlook Message (MSG) is the email message format used by Microsoft Outlook, storing emails with attachments and metadata.

What is OTT?

OpenDocument Text Template (OTT) is a reusable document template format for LibreOffice and OpenOffice word processors.

When Should You Use MSG vs OTT?

Use MSG When...

Reach for MSG when your priority is email archiving, outlook data extraction — its uncompromising quality ensures every detail is preserved.

Use OTT When...

Reach for OTT when your priority is document templates, letterheads, form letters — its uncompromising quality ensures every detail is preserved.

MSG vs OTT: Key Differences

  • •MSG and OTT diverge on compression: lossless compression for the source, lossless compression for the target.
  • •Since both MSG and OTT use lossless compression, the quality characteristics are comparable — differences in file size come down to how efficiently each format implements compression.
  • •Transparency: N/A
  • •MSG files are typically Varies by attachment size while OTT files range Small template files
  • •Use case fit: MSG targets email archiving, outlook data extraction and OTT targets document templates, letterheads, form letters — your choice depends on which workflow stage you are serving.

Advantages of MSG

  • ✓The lossless nature of MSG means file sizes stay reasonable while handling Email archiving, Outlook data extraction efficiently.
  • ✓From mobile devices to enterprise servers, MSG is recognized and supported everywhere.
  • ✓The trade-off for MSG's perfection is larger files — but for archival work, it is worth every megabyte.
  • ✓MSG is a first-class citizen in all major software ecosystems, from creative suites to development environments.

Advantages of OTT

  • ✓OTT compresses data using lossless methods, keeping file sizes manageable for Document templates, letterheads, form letters.
  • ✓Industry-wide support means OTT files open anywhere — from legacy systems to the latest devices.
  • ✓Lossless quality makes OTT the gold standard for archival and master copies.
  • ✓From professional software to open-source alternatives, OTT works out of the box.

Common Use Cases for MSG to OTT Conversion

  • Policy and procedure manuals
  • Grant applications
  • Case studies and whitepapers
  • Professional reports and proposals
  • Academic papers and theses
  • Business contracts and agreements

Industry Applications

InsuranceReal EstateRegulatory ComplianceBusiness AdministrationAcademic PublishingLegal Documentation

Best Practices for MSG to OTT Conversion

  • →When converting MSG to OTT, check that tables, images, and embedded fonts transfer correctly — complex layouts may shift between formats
  • →Use OTT as your final distribution format if it offers better compatibility, or keep MSG as an editable master
  • →For MSG to OTT conversions, verify that tracked changes and comments are preserved if needed
  • →Embed fonts to ensure consistent rendering across devices and platforms
  • →Always keep a backup of your original files before converting
  • →Choose the appropriate quality settings for your specific use case

Troubleshooting MSG to OTT Conversion

  • !Page breaks moved after converting MSG to OTT → margin and spacing settings differ between document formats
  • !Tables in the converted OTT are misaligned → complex merged cells and nested tables are handled differently by each format
  • !Headers and footers missing from OTT → verify that the converter supports header/footer extraction for your source format
  • !Special characters appear as gibberish in OTT → the source file may use a different character encoding than expected

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Convert MSG to OTT Online - Free & Fast

Convert MSG files to OTT online for free. High-quality conversion with no registration required.

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About MSG and OTT

MSG

MSG (Outlook MSG) - Outlook Mail Message, email with attachments and metadata. Best for email archiving, outlook data extraction.

OTT

OTT (ODT templates) - OpenDocument Text Template, reusable document template. Ideal for document templates, letterheads, form letters.

Format Comparison

CompressionLossless → Lossless
TransparencySupported
Use CaseConvert from email archiving, outlook data extraction to document templates, letterheads, form letters
File Size~Small template files after conversion

FAQs

Is converting MSG to OTT free?

Yes, GoConvertFile offers free conversion of MSG to OTT for files up to 100MB. No registration required.

How long does it take to convert MSG to OTT?

Most MSG to OTT conversions complete within seconds for standard-sized files. Larger files may take longer depending on the conversion complexity.

What is OTT best used for?

OTT is ideal for document templates, letterheads, form letters. OpenDocument Text Template, reusable document template

What file size should I expect after converting MSG to OTT?

File size after MSG to OTT conversion depends on the content complexity and quality settings. Both formats use similar compression approaches so sizes are comparable.

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