RunConvert

FODS Converter

Convert files to and from FODS online for free. Fast, secure, and high-quality file 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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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.

01

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.

02

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.

03

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 a FODS file?

The FODS format is the Flat XML implementation of the OpenDocument Spreadsheet standard (ISO/IEC 26300). Unlike the standard ODS format, which utilizes a ZIP-compressed container holding multiple XML manifests and assets, FODS stores the entire spreadsheet document-including content, styles, and metadata-within a single, uncompressed human-readable XML file. This structure facilitates version control (e.g., Git) and direct XML manipulation via XSLT transformations without the need for decompression.

How to open a FODS file

FODS files are natively supported by the LibreOffice and Apache OpenOffice suites, which utilize the underlying OpenDocument structure. They can also be opened in any text editor or XML parser for code-level inspection. Microsoft Excel requires third-party plugins or ODF converters to correctly interpret the Flat XML schema.

FODS Technical Info

Full Name
Flat OpenDocument Spreadsheet
Developed By
OASIS Consortium
Initial Release
2005
MIME Type
application/vnd.oasis.opendocument.spreadsheet-flat-xml

Why RunConvert

The fastest way to convert any file

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

3,000+ conversions supported

Every popular and niche format covered - video, audio, image, document, archive and more. New formats added regularly.

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

Convert without creating an account - no credit card, no trial clock. Sign in only if you want history and higher daily limits.