ODS to XLTX Converter
Convert ODS to XLTX 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
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 an ODS file?
The OpenDocument Spreadsheet (ODS) format is an XML-based file standard for spreadsheets, maintained by the Organization for the Advancement of Structured Information Standards (OASIS). Standardized as ISO/IEC 26300, ODS utilizes a ZIP-compressed container holding separate XML files for content (content.xml), styles, and metadata. It serves as the native file format for the LibreOffice and Apache OpenOffice suites, offering a vendor-neutral alternative to proprietary formats by strictly adhering to the OpenDocument Format (ODF) specifications.
How to open an ODS file
ODS files are natively supported by open-source suites such as LibreOffice Calc and Apache OpenOffice on Linux, Windows, and macOS. Microsoft Excel (versions 2007 SP2 and later) includes built-in support for opening and saving ODS files, though some formatting variations may occur due to ODF version differences. Google Sheets also provides cloud-based support for importing and editing this format.
ODS Technical Info
- Full Name
- OpenDocument Spreadsheet
- Developed By
- OASIS / Sun Microsystems
- Initial Release
- 2005
- MIME Type
- application/vnd.oasis.opendocument.spreadsheet
What is an XLTX file?
The XLTX format is the standard, macro-free template file for Microsoft Excel 2007 and later, adhering to the ISO/IEC 29500 OOXML standard. It uses a ZIP-compressed directory of XML text files to define spreadsheet layouts, styles, and formulas. Unlike XLTM, the XLTX specification explicitly forbids the storage of VBA code, ensuring that templates remain secure and free of macro-based viruses when distributed across enterprise networks.
How to open an XLTX file
XLTX files open natively in Microsoft Excel 2007 and newer on Windows and macOS. When opened, the software creates a new, untitled workbook based on the template rather than editing the XLTX file directly. Compatibility extends to LibreOffice Calc, Apache OpenOffice, and PlanMaker, allowing for cross-platform template usage without requiring the Microsoft Office suite.
XLTX Technical Info
- Full Name
- Excel Open XML Template
- Developed By
- Microsoft
- Initial Release
- 2007
- MIME Type
- application/vnd.openxmlformats-officedocument.spreadsheetml.template
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The fastest way to convert any file
Purpose-built for speed, privacy, and breadth of format support.
Convert ODS to XLTX in seconds
Every ODS to XLTX 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.
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Encrypted in transit and never shared with anyone. Uploads are erased the moment your job completes, and results shortly after.
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Developer API
Convert ODS to XLTX via API
Automate ODS to XLTX 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": "ods-to-xltx",
"tasks": {
"upload-file": {
"operation": "import/upload"
},
"convert": {
"operation": "convert",
"input": "upload-file",
"output_format": "xltx"
},
"export-result": {
"operation": "export/url",
"input": "convert"
}
}
}'
# 2. Upload your file (use upload_url from the response)
curl -X PUT "$UPLOAD_URL" --upload-file input.ods
# 3. Poll for result
curl https://api.runconvert.com/v3/jobs/$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.