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WMZ to KWD Converter

Turn WMZ into KWD documents — browser-based

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Quality Output

Professional-grade KWD output from WMZ source data. The converter optimizes for the target format strengths.

Fully Browser-Based

Zero installation. The WMZ to KWD converter lives in the browser — accessible from any machine, any time.

Private & Secure

Your WMZ uploads are deleted immediately after conversion. KWD results are automatically removed within 24 hours.

How to convert WMZ to KWD

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose kwd or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your kwd file right afterwards

About formats

WMZ is a compressed variant of the Windows Metafile (WMF) format, introduced by Microsoft with Office 2000 in 1999. A WMZ file is simply a WMF file compressed using the gzip algorithm (RFC 1952), reducing the file size for more efficient storage and embedding within Office documents, web pages, and other containers. The underlying WMF format stores vector graphics as a sequence of GDI (Graphics Device Interface) function calls — commands that draw lines, curves, polygons, text, and bitmaps — recorded in a device-independent format that can be replayed at any resolution. WMZ preserves this vector nature: when decompressed, the file produces a standard WMF that renders through the Windows GDI subsystem using the same drawing primitives as on-screen display, ensuring visual fidelity across different output devices and resolutions. WMZ files are commonly found embedded in Microsoft Office documents (Word, Excel, PowerPoint), HTML email messages generated by Outlook, and web content produced by Office's Save as Web Page feature. The format is also used for clip art and template graphics distributed with Office installations. One advantage is space efficiency: gzip compression typically reduces WMF file sizes by 60-80%, meaningful when many small graphics are embedded in a single document or web page. The format's deep integration with the Microsoft Office ecosystem is another practical strength — WMZ graphics render natively in all Office applications without additional software, and can be extracted, decompressed, and converted using tools like LibreOffice, ImageMagick, Inkscape, and standard gzip utilities.
Developer: Microsoft
Initial release: 1999
KWD is the native document format of KWord, the word processor component of KOffice (later renamed Calligra Suite), developed by the KDE community with its first stable release in KOffice 1.0 in 2000. KWord distinguished itself from other word processors through a frame-based layout model where text, images, and other content existed in independent frames that could be positioned freely on the page, similar to desktop publishing applications — a departure from the linear text-flow approach used by most word processors. KWD files store document content in a compressed XML format that describes the frame hierarchy, text content with formatting markup, paragraph styles, page dimensions, headers, footers, and embedded media. The format uses a ZIP container packaging the XML document alongside any referenced images and resources. One advantage was the flexible frame-based layout — users could position text and image frames independently on the page, enabling newsletter-style layouts and creative document designs without switching to a dedicated DTP application. The open XML structure is another benefit, making KWD files transparent and accessible to automated processing. KWord was included in several Linux distributions as part of the KDE desktop environment during the 2000s. The project was eventually discontinued in favor of Calligra Words, which adopted the ODF standard. KWD files can be opened with legacy KOffice installations or converted through document conversion tools.
Developer: KDE
Initial release: 2000

Frequently Asked Questions

Why convert WMZ to KWD?

The WMZ format has limited viewer support. Converting to KWD ensures broad compatibility across devices.

How do I open KWD files?

Use Calligra Words, legacy KWord to view KWD files. This format enjoys broad software support on all major platforms.

What platforms support this conversion?

No platform restrictions — if your device has a browser, you can convert WMZ to KWD on Convertio.

How quickly does WMZ to KWD conversion finish?

Most conversions complete within seconds. Larger files may take slightly longer, but cloud processing keeps it fast regardless of your device.

Is my WMZ data kept private?

Uploaded WMZ files are deleted right after conversion. Converted KWD outputs are removed within 24 hours automatically.

Can I convert multiple WMZ files at once?

Yes, batch processing is available. Add multiple WMZ files simultaneously and download each KWD result separately.