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Convert DOCX to STW
Online & free tool to convert DOCX files to STW

1) Input file

Choose source file(s) to convert:

0 of 5 files added (up to 1000 MB combined)

2) Output format

Select a target format to convert to:

3) Convert

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Fine-tune conversion output with format-specific controls.

No advanced controls available for this format.

1) File URL

Choose file URL to convert:

2) Output format

Select a target format to convert to:

3) Convert

By clicking you agree to our terms

Fine-tune conversion output with format-specific controls.

No advanced controls available for this format.

1) Cloud Service

Choose a cloud service provider:

2) Output format

Select a target format to convert to:

3) Convert

By clicking you agree to our terms

Fine-tune conversion output with format-specific controls.

No advanced controls available for this format.
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DOCX

Microsoft Word Open XML Document

In an effort to create an open document standard, Microsoft in collaboration with ISO/IEC and Ecma, developed the Office Open XML standard in 2006. One of the filename extensions supported in this specification is the .docx extension, a text document filename extension. The .docx was introduced in Microsoft Office Word 2007 and has been supported ever since in later iterations. It has become the default filename extension for all text documents produced using Microsoft Office Word. Given the open source nature of the XML specification, more alternative document processing applications support read and write capabilities on documents saved with the .docx filename extension. This is in comparison to the .doc filename extension which is a proprietary asset owned by Microsoft.
STW

Open Office.org 1.0 Text Document Template

Open Office.org 1.0 Text Document Template

Trusted conversion quality

FreeFileConvert uses tuned encoding for DOCX to STW conversions, preserving clarity while trimming file size. Finished audio streams instantly across phones, tablets, desktops, and modern browsers without extra tweaks.

Seamless workflow

Upload DOCX files from desktop, tablet, or cloud storage, queue multiple jobs, and let the converter finish autonomously. Return whenever convenient to download synchronized STW results on any device you rely on.

Batch support for teams

Process up to 5 files sized 1000 MB per batch without splitting queues manually. Mixed-format uploads convert together, producing consistent STW audio with dependable progress tracking.

About DOCX

How to open DOCX files

Microsoft Office Word 2007/2010/2013
Google Docs
Corel WordPerfect Office X7
SoftMaker Office 2010
Read more...

Technical details

The .docx filename extension is specified in the open standard ISO/IEC 29500-1:2012. A free compatibility update allows older versions of Microsoft Office Word such as Office 2003 to open .docx documents.

About STW

How to open STW files

LibreOffice
Apache OpenOffice

How to convert DOCX to STW

STEP 1

Upload your document file in the DOCX format from your device, Dropbox, or Google Drive.

STEP 2

Select STW as the output format and click Convert. Adjust optional settings if needed.

STEP 3

Download the converted document file. Each file stays available for up to 5 downloads.

More DOCX and STW options

Convert other files to STW

Explore popular source formats that convert beautifully into STW.

Convert DOCX to other formats

Need a different output? These conversions transform DOCX into other widely used formats.

Your data, our priority

  • 256-bit SSL encrypted uploads and downloads
  • Automatic file deletion shortly after conversion completes
  • Reliable global infrastructure for consistent performance