WMZ to SK1 Converter

WMZ to SK1 conversion — scalable vector online

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Simple Workflow

Straightforward process from start to finish. The WMZ to SK1 converter keeps things uncomplicated and efficient.

Fast Conversion

The WMZ to SK1 conversion pipeline is optimized for speed. Most files process in a matter of seconds.

No Account Needed

No account creation required for basic conversions. Go from WMZ to SK1 in seconds without any signup steps.

How to convert WMZ to SK1

1

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

2

Choose sk1 or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your sk1 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
SK1 is the native file format of the sK1 project, an open-source vector graphics editor and conversion engine started by Igor Novikov in 2003 as a successor to Bernhard Herzog's Skencil. The format evolved from the original SK format, extending its capabilities while maintaining the text-based, Python-readable syntax for describing vector documents. SK1 files encode complete document structures including multiple pages, layers, guidelines, and a full hierarchy of graphic objects — Bezier paths, rectangles, circles, polygons, text blocks, and embedded raster images — with attributes for fills (solid, gradient, pattern, hatching), strokes, and transformations. The sK1 project distinguished itself by focusing on prepress and professional print production features, adding CMYK color management, ICC color profiles, spot color support, and PDF/PostScript output — capabilities unusual in open-source vector editors. One advantage is professional color handling — sK1's CMYK workflows and color management make it one of the few open-source tools suitable for print-ready vector production. The project's companion tool, UniConvertor, leverages the SK1 format as an intermediate representation for converting between numerous vector formats (CDR, CMX, WMF, EMF, SVG, and others), giving SK1 significance beyond the editor itself as a universal interchange format. The text-based file structure preserves the readability and scriptability advantages inherited from Skencil's original SK format.
Initial release: 2003

Frequently Asked Questions

Why convert WMZ to SK1?

WMZ data from Microsoft Office documents and Windows clipboard becomes universally viewable once converted to SK1 format.

How do I open SK1 files?

Open SK1 files with sK1 and UniConvertor on Linux. Most operating systems handle SK1 natively or with built-in viewers.

What platforms support this conversion?

The converter runs entirely in the browser, so it works on Windows, macOS, Linux, iOS, and Android without issues.

Do I need to install anything?

Convertio is fully browser-based. No desktop software, plugins, or extensions are necessary for WMZ to SK1 conversion.

Can I convert multiple WMZ files at once?

Batch conversion is supported — upload several WMZ files and each will be independently converted to SK1 format.

Does the conversion happen on my device?

Convertio handles all processing on its servers — your device just uploads the WMZ and downloads the SK1 result.