FreePrivateNo watermark

Convert an Excel Workbook to OpenDocument ODS

Rewrite an XLSX or XLS workbook as an OpenDocument .ods for LibreOffice Calc. All sheets and cell values carry over; charts and macros do not.

Excel to ODS workspace

Secure local session

Drop files here or browse files

Drop a file here or browse to start.

Processed in your browser — nothing is uploaded
Select Files
Supports: .pdf
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  • Every sheet is carried across, with its name, cell values and row and column structure intact
  • Reads modern .xlsx and legacy binary .xls, so old archives convert as easily as current files
  • Output opens natively in LibreOffice Calc, OpenOffice Calc, Collabora and Google Sheets
  • Charts, pivot tables, conditional formatting and macros are Excel-specific layers and do not survive the rewrite
Nothing is uploadedNo account, no watermarkWorks offline after the first loadFree, no daily limits
Direct Overview & Quick Answer

ODS is the ISO-standardised OpenDocument spreadsheet format used natively by LibreOffice Calc, and this converter reads an Excel workbook's sheets and cell values and rewrites them in that container.

Built and maintained by Akash Kore · About

How to Use the Free Online Excel to ODS Studio in 4 Steps

Simple 4-step walkthrough for fast, secure processing

Step 1

Drop the workbook in

Both .xlsx and the older binary .xls are accepted. Password-protected workbooks must be unlocked in Excel first.

Step 2

Sheets and values are read

Every sheet in the workbook is parsed, with its name and cell contents, inside this tab.

Step 3

The OpenDocument file is written

The workbook structure is re-serialised into the ODS container that LibreOffice Calc reads natively.

Step 4

Open it in Calc and check the formulas

Spot-check calculated cells and rebuild any chart or pivot table, which are the parts the format change cannot carry.

How We Compare

EditPDFKit vs. Traditional Cloud Services for Excel to ODS

Why thousands of privacy-conscious users choose EditPDFKit over cloud converters

100% Private On Your Device
FeatureEditPDFKit (editpdfkit.com)Traditional Cloud Tools (iLovePDF, Smallpdf)
Where Files Are Processed
Directly on Your Device (Zero Uploads)
Uploaded to Remote Company Servers
Privacy & Safety
Zero Uploads • Files Never Leave Your Device
Files Uploaded and Retained on Remote Company Servers
Local Hardware Acceleration
Uses your device's multi-core CPU and WebAssembly for instant output
Processes on shared cloud servers with upload and download delays
Built-in Privacy Vault
Saved Privately on Your Device (View or delete anytime)
Saved on Cloud Servers (Cannot verify if or when deleted)
Daily Usage Limits
100% Unlimited & Free Forever
Free tiers commonly cap daily files; check their pricing pages
File Size Limits
No Limits (Process files of any size)
Free tiers commonly cap upload size; check their pricing pages
Works Without Internet
Yes • 100% Offline (Works without Wi-Fi)
No • Fails without constant internet connection
Account & Sign In
No Signup • No Login • Zero Email Required
Commonly requires an account or email to use fully
Watermarks on Your Files
100% Clean • No Watermarks Ever
Free tiers commonly add a watermark or charge to remove it; check their pricing pages
100% Private On Your Device

How Excel to ODS Works: Keep Your Files Safe & Private

See step-by-step how your files are processed. Everything happens right inside your browser — your files are never uploaded to the internet or shared with anyone.

Simple 4-Step ProcessZero Files Sent to Any Server
10 Files Uploaded

1. Open on Your Device

When you pick a file, your browser opens it directly on your computer or phone. Your document stays on your device and is never uploaded anywhere.

Stays 100% on your device
2Instant Speed

2. Process in Your Browser

Your device does all the work right inside your browser. Because there are no server queues or waiting lines, your files are processed instantly.

Fast with zero server waiting
3Private Storage

3. Save in Private Vault

When you save your work, your file is stored securely inside your browser's private vault on your device. You can view or reopen it anytime, even without internet.

Safe offline access on your device
4Complete Control

4. Download, Reuse, or Delete

Download your finished file, send it directly to another tool without re-uploading, or click 'Clear Vault' to permanently erase your files anytime with one click.

You control when files are deleted

How You Can Prove Your Files Never Leave Your Device

Test 1: Turn Off Wi-Fi (Airplane Mode Test)

Open this tool, turn off your Wi-Fi or turn on Airplane Mode, and drop your file. It will still edit, convert, or compress and let you download the result! This proves the tool works completely offline without sending anything to any server.

Test 2: Check with Browser Inspect (Press F12)

Press F12 on your keyboard (or right-click anywhere and choose "Inspect"), click on the Network tab, and process your file. You will see 0 bytes of your file sent over the web — absolute proof of 100% privacy.

Want to learn more about how the Privacy Vault protects your documents offline?Read Privacy Vault Article

Excel to ODS Technical Specifications & Device Capabilities

Key features, device compatibility, and supported file types

How It Works

Runs Directly on Your Device

Processed by your browser with zero waiting or upload lag

Privacy & Security

100% Private (0 Files Uploaded)

Safe for bank statements, IDs, tax forms, and confidential files

Watermarks

100% Watermark-Free

Clean original documents ready for official submissions

Supported File Types

.xlsx, .xls

Drag & drop or paste directly from clipboard (Ctrl+V)

Cost & Limits

100% Free With No Limits

No account needed, no daily limits, no paywalls

Device Compatibility

Works on All Phones & Computers

iPhone, Android, Windows PC, Mac, iPad, and Chromebook

Spread The Word

Share Excel to ODS with your team or community

Help friends, clients, and colleagues edit and convert documents safely with zero file uploads and no watermarks.

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Zero Uploads • No Daily Limits

Looking for a Free Alternative to Popular Cloud Tools?

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Real User Feedback • 100% In-Browser

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Frequently Asked Questions About Excel to ODS

Everything you need to know about Excel to ODS on editpdfkit.com

Three reasons come up repeatedly. Public-sector and academic procurement rules in several European countries specify OpenDocument for documents that must stay readable without a commercial licence. Collaborators running LibreOffice avoid the occasional import quirk by working in the native format. And for long-term archiving, an ISO standard with multiple independent implementations is a safer bet than a format controlled by one vendor. If none of those apply to you, XLSX is fine.