OXPS to OTT Converter
Convert OXPS to OTT online for free. Fast, secure, and high-quality conversion with no sign-up or software required.
Maximum file size is 1GB
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Three steps to your converted file
Everything happens in your browser tab - upload, pick a format, download. The heavy lifting runs on our servers.
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.
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.
Convert & download
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What is an OXPS file?
The OXPS (Open XML Paper Specification) format is a fixed-layout page description language developed by Microsoft and standardized as ECMA-388. It functions as the non-proprietary successor to the XPS format, utilizing a ZIP archive to contain distinct XML markup for page content, document relationships, and embedded resources like fonts and images. Unlike reflowable document formats, OXPS describes the exact placement of text and vector graphics for device-independent printing and viewing.
How to open an OXPS file
Windows operating systems (Windows 8 and later) provide the native 'XPS Viewer' application for decoding OXPS files. On macOS and Linux, native kernel support is absent; users must rely on third-party conversion tools (such as NiXPS) or convert the file to PDF using command-line utilities. It is notable that the legacy XPS Viewer on older Windows systems cannot open OXPS files without a dedicated converter from Microsoft.
OXPS Technical Info
- Full Name
- Open XML Paper Specification
- Developed By
- Microsoft / Ecma International
- Initial Release
- 2009
- MIME Type
- application/oxps
What is an OTT file?
An OTT (OpenDocument Text Template) file is a standardized document template defined by the OASIS Open Document Format for Office Applications (ODF) specification (ISO/IEC 26300). Based on XML syntax and encapsulated within a ZIP-compressed container, the format stores styling definitions, page layouts, and manifest files separate from content, allowing users to generate multiple .ODT files with consistent formatting. It supports lossless compression and interoperability across open-source office suites.
How to open an OTT file
Native support is built into ODF-compliant word processors such as LibreOffice Writer and Apache OpenOffice. Microsoft Word opens OTT files via integrated ODF conversion filters. Because the file functions as a template, opening it typically instantiates a new, untitled document (.odt) rather than editing the template file itself, unless specifically opened for editing via the application's file menu.
OTT Technical Info
- Full Name
- OpenDocument Text Template
- Developed By
- OASIS (Organization for the Advancement of Structured Information Standards)
- Initial Release
- 2005
- MIME Type
- application/vnd.oasis.opendocument.text-template
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Every OXPS to OTT conversion runs on our servers, so your device stays fast and the output quality stays intact.
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Developer API
Convert OXPS to OTT via API
Automate OXPS to OTT conversions in three steps: create a job, upload your file, then poll for the result.
# 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": "oxps-to-ott",
"tasks": {
"upload-file": {
"operation": "import/upload"
},
"convert": {
"operation": "convert",
"input": "upload-file",
"output_format": "ott"
},
"export-result": {
"operation": "export/url",
"input": "convert"
}
}
}'
# 2. Upload your file (use upload_url from the response)
curl -X PUT "$UPLOAD_URL" --upload-file input.oxps
# 3. Poll for result
curl https://api.runconvert.com/v3/jobs/$JOB_ID?include=tasks \
-H "Authorization: Bearer YOUR_API_KEY"Replace YOUR_API_KEY with your RunConvert API key. Get your free API key at runconvert.com/api.