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DOT to DOCX Converter

Convert DOT to DOCX online for free. Fast, secure, and high-quality conversion with no sign-up or software required.

  • Free to use
  • No file stored beyond 1 hour
  • Encrypted over TLS 1.2/1.3
  • No watermarks

Drag and drop your files here or click to upload.

Maximum file size is 1GB

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How it works

Three steps to your converted file

Everything happens in your browser tab - upload, pick a format, download. The heavy lifting runs on our servers.

  1. 01

    Upload your file

    Drag and drop, click to browse, or paste a URL. Batches take up to 20 files at once - 230+ input formats across video, audio, image, document, and archive types.

  2. 02

    Choose an output format

    Pick from over a hundred output formats. Filter by category or search by name - every option is open to everyone, no account needed.

  3. 03

    Convert & download

    Hit Convert and grab your download link moments later. Originals are erased when the job completes; results are cleared within about an hour.

What is a DOT file?

Microsoft Word 97-2003 Template

Developed By
Microsoft Corporation
Initial Release
1997
MIME Type
application/msword

The DOT file extension represents a legacy Microsoft Word Document Template utilized by Word 97 through 2003. Based on the proprietary Microsoft Object Linking and Embedding (OLE2) binary interchange format, DOT files store structural blueprints-including styles, AutoText entries, macros, and toolbar customizations-to standardize document creation. Unlike the modern XML-based Office Open XML standard, DOT relies on binary sector storage streams and acts as the predecessor to the DOTX and DOTM formats. These files are susceptible to macro viruses due to their ability to execute embedded Visual Basic for Applications (VBA) scripts.

How to open a DOT file

Native support for DOT files is embedded in all versions of Microsoft Word, though modern iterations (Word 2007 and later) will open them in Compatibility Mode. For users without a Microsoft Office license, the format can be parsed by open-source office suites such as Apache OpenOffice Writer and LibreOffice Writer. Google Docs also provides conversion capabilities for viewing and editing DOT contents within a web browser environment.

What is a DOCX file?

Word Open XML Document

Developed By
Microsoft
Initial Release
2006
MIME Type
application/vnd.openxmlformats-officedocument.wordprocessingml.document

The DOCX format is the default document standard for Microsoft Word 2007 and newer, based on the Office Open XML (OOXML) specification standardized under ISO/IEC 29500 and ECMA-376. It functions as a compressed ZIP container that packages separate XML files (such as document.xml, styles.xml, and settings.xml) alongside media assets. This modular XML architecture allows for improved data recovery and smaller file sizes compared to legacy binary DOC files, while explicitly prohibiting the storage of VBA macros.

How to open a DOCX file

DOCX is natively supported by Microsoft Word 2007+ on Windows and macOS. Due to its status as an ISO standard, it has broad compatibility with non-Microsoft ecosystem tools; it can be opened and edited by Apple Pages, Google Docs, LibreOffice Writer, and Apache OpenOffice. Furthermore, because it is a ZIP archive, users can rename the extension to .zip to extract and inspect the internal XML structure and embedded media assets manually.

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Why RunConvert

The fastest way to convert any file

Purpose-built for speed, privacy, and breadth of format support.

  • Convert DOT to DOCX in seconds

    Every DOT to DOCX conversion runs on our servers, so your device stays fast and the output quality stays intact.

  • Fast, cloud-powered

    No queue, no waiting. Files are processed on high-performance servers and returned in seconds, even for large files.

  • Secure & private

    Encrypted in transit and never shared with anyone. Uploads are erased the moment your job completes, and results shortly after.

  • Free - no account needed

    Convert without creating an account - no credit card, no trial clock. Sign in only if you want history and higher daily limits.

Developer API

Convert DOT to DOCX via API

Automate DOT to DOCX conversions in three steps: create a job, upload your file, then poll for the result.

Replace YOUR_API_KEY with your RunConvert API key. Get your free API key at runconvert.com/api.

# 1. Create job
curl -X POST https://api.runconvert.com/v3/jobs \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "tag": "dot-to-docx",
    "tasks": {
      "upload-file": {
        "operation": "import/upload"
      },
      "convert": {
        "operation": "convert",
        "input": "upload-file",
        "output_format": "docx"
      },
      "export-result": {
        "operation": "export/url",
        "input": "convert"
      }
    }
  }'

# 2. Upload your file (use upload_url from the response)
curl -X PUT "$UPLOAD_URL" --upload-file input.dot

# 3. Poll for result
curl https://api.runconvert.com/v3/jobs/$JOB_ID?include=tasks \
  -H "Authorization: Bearer YOUR_API_KEY"

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