Convert Excel to ODS Online

Convert Microsoft Excel (.xlsx) files to OpenDocument Spreadsheet (.ods) format online for free. Fast, secure, and no sign-up required. Your files are automatically deleted within 1 hour.

Free online excel to ods converter — no software needed. Instantly change, transform, and export your files in seconds.

XLSXODS

Drag & drop your file here

or browse to select — accepts .xlsx, .xls (max 10MB)

How to Convert Excel to ODS Online

1. Upload Your File

Select or drag your .xlsx, .xls file into the converter

2. Convert Instantly

Your file is converted from .xlsx to .ods in seconds

3. Download Result

Download your converted .ods file to any device

Best Free Excel to ODS Converter

Lightning Fast Conversion

Convert .xlsx to .ods in seconds. No waiting, no queues — instant processing.

100% Secure & Private

All files are encrypted in transit via HTTPS and auto-deleted within 1 hour. Your data stays private.

Works on Any Device

Browser-based converter — works on Windows, Mac, Linux, iOS, Android, and Chromebook. No installation needed.

No Sign-Up Required

Start converting immediately. No registration, no email, no watermarks on your converted files.

When to Convert Excel to ODS

Sharing & collaboration

Send excel files to people who only have ods-compatible software, without losing layout or formatting.

Cross-platform compatibility

Open and edit your excel file on devices that don't support it natively by converting to ods once.

Excel vs ODS — Why Convert?

XLSX (Excel)

Standard Excel file format
Widely used across platforms
Excel files may have specific features
May require specific software to open

ODS (ODS)

ODS format for broader compatibility
Easy to share and distribute
Supported by many applications
Ideal for your target workflow

Excel to ODS — Frequently Asked Questions

Is Excel to ODS conversion free?

Yes! Reformat offers free Excel to ODS conversion. Free users get 3 conversions per day. Upgrade to Pro for unlimited conversions.

How do I convert .xlsx to .ods?

Simply upload your Excel spreadsheet, click Convert, and download your OpenDocument spreadsheet. The entire process takes just seconds.

What is the maximum file size?

Free users can convert files up to 10MB. Pro users get up to 100MB, and Business users get up to 500MB.

Is my file safe?

Absolutely. All files are processed securely and automatically deleted from our servers within 1 hour. We never access or share your data.

Can I convert multiple files at once?

With a Pro or Business account you can batch convert multiple files. Free users can convert one file at a time.

Is the Excel to ODS converter free?

Yes. Anonymous users get 5 free conversions per day; signed-in users get 10/day plus 2 AI uses. Pro removes the daily limit and raises the file-size cap.

What is the maximum file size for Excel to ODS?

Free users can upload files up to 10MB. Pro raises this to 100MB and Business to 500MB.

Is it safe to upload my excel file?

Files are uploaded over HTTPS, processed on our servers, and deleted within 1 hour. We do not read, share, or train on file contents.