Spreadsheet Conversion
Convert XLSX to ODD Online — Free
Fast, free XLSX to ODD converter. No registration required.
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How to Convert
1
Upload your .xlsx file by dragging it into the upload area or clicking to browse.
2
Choose your output settings. The default settings work great for most files.
3
Click Convert and download your .odd file when it's ready.
What is XLSX?
XLSX is the modern Microsoft Excel format. It's the standard for spreadsheets containing data, formulas, charts, and pivot tables.
Format Details
- Full Name
- Microsoft Excel Spreadsheet
- Extension
- .xlsx
Key Features
- Spreadsheet
- Formulas
- Charts
- Data analysis
What is ODD?
ODD (One Document Does-it-all) is a TEI customization format used for defining XML document schemas. It combines documentation and schema generation in a single XML file.
Format Details
- Full Name
- One Document Does-it-all
- Extension
- .odd
Key Features
- TEI customization
- Schema definition
- XML based
- Documentation format
XLSX vs ODD
| Feature | XLSX | ODD |
|---|---|---|
| Full Name | Microsoft Excel Spreadsheet | One Document Does-it-all |
| Extension | .xlsx | .odd |
| Best For | Spreadsheet | TEI customization |
Frequently Asked Questions
Yes. You can convert up to 5 files per day completely free, with no watermark or registration required.
Most files convert in under 30 seconds. Larger files (over 500MB) may take 1-3 minutes.
No. Our converter uses optimized encoding settings by default to preserve the original quality.
Free users can convert files up to 100MB. Pro users can convert files up to 2GB.
Yes. Our converter works in any modern web browser on any device.