SXC to ODS Converter

Convert SXC to ODS online for free. Fast, secure, and high-quality conversion with no sign-up or software required.

Free to useNo file stored beyond 1 hourEncrypted over TLS 1.2/1.3No watermarks

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Maximum file size is 1GB

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How it works

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 SXC file?

The SXC (StarOffice Calc) format is a legacy XML-based spreadsheet file developed by Sun Microsystems for the StarOffice suite (versions 5.2 through 7.0). It acts as the technical predecessor to the modern OpenDocument (ODS) standard. The format utilizes ZIP compression to encapsulate XML data describing cell values, formulas, and formatting. While largely obsolete following the standardization of ODF in 2005, SXC remains significant in the history of open-source office software development.

How to open an SXC file

Modern native OS support for SXC is non-existent without third-party tools. The most reliable software for opening SXC files is LibreOffice Calc or Apache OpenOffice, both of which maintain backward compatibility with legacy StarOffice formats. Microsoft Excel does not support SXC natively and requires file conversion prior to access.

SXC Technical Info

Full Name: StarOffice Calc Spreadsheet
Developed By: Sun Microsystems
Initial Release: 2000
MIME Type: application/vnd.sun.xml.calc

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

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Why RunConvert

The fastest way to convert any file

Purpose-built for speed, privacy, and breadth of format support.

Convert SXC to ODS in seconds

Every SXC to ODS 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.

Secure & private

Encrypted in transit and never shared with anyone. Uploads are erased the moment your job completes, and results shortly after.

Free - no account needed

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Developer API

Convert SXC to ODS via API

Automate SXC to ODS 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": "sxc-to-ods",
    "tasks": {
      "upload-file": {
        "operation": "import/upload"
      },
      "convert": {
        "operation": "convert",
        "input": "upload-file",
        "output_format": "ods"
      },
      "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.sxc

# 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.