ONLYOFFICE Docs

Online spreadsheet editor with highest Excel compatibility

Open, edit, and collaborate on XLSX files online without Microsoft Excel or Google Sheets. Work with powerful spreadsheets, keep full control of your data, and choose cloud or self-hosted deployment.

Work with any spreadsheet format without friction

Open, edit, and convert spreadsheets with full structure and formatting preserved no matter where your data comes from.

Seamless support for XLSX, XLS, ODS, CSV, TXT, and more
Open both modern and legacy files without compatibility issues
Import and clean CSV data with flexible settings
Convert spreadsheets to XLSX for consistent editing
Export to PDF, XLSX, ODS, CSV, and other formats

Built for full Excel compatibility

Switch from Microsoft Excel without breaking your workflows.

Native XLSX engine for maximum accuracy
Open complex spreadsheets without layout or formula issues
Preserve charts, tables, and formatting
No need to rebuild or reformat your files

Create and analyze spreadsheets with powerful tools

Build anything from simple tables to complex analytical models using a full set of advanced features.

400+ formulas and functions for calculations
Pivot tables for fast data analysis
Charts and visualizations for clear insights
Conditional formatting and data validation
Named ranges, filters, and sorting tools

Collaborate on spreadsheets in real time

Work together on the same spreadsheet with no delays, duplicates, or version conflicts.

Real-time co-editing with multiple users
Comments and mentions for team communication
Version history and change tracking
Flexible permissions to control access

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Automate calculations and workflows

Save time by automating repetitive spreadsheet tasks.

Create and run macros using JavaScript
Create new macros without writing code
Convert existing VBA macros for seamless migration
Apply templates for recurring workflows

View macro samples

Work smarter with built-in AI assistance

Accelerate spreadsheet tasks with AI-powered tools.

Generate formulas and analyze data instantly
Summarize datasets and extract insights
Convert existing VBA macros and create new ones
Connect your preferred AI provider

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Protect your spreadsheets with full control

Keep sensitive data secure with flexible protection settings and enterprise-grade security.

Set passwords for entire spreadsheets, workbooks, or individual sheets
Hide formulas to protect calculations and business logic
Lock cells, shapes, and text to prevent unwanted changes
Allow editing only for specific users and defined data ranges
Control access with permissions and secure sharing options

Integrate spreadsheets into your applications

Embed powerful spreadsheet editing into your own platform.

Add spreadsheet editing to web apps via API
Customize UI, features, and permissions
Connect your storage and backend systems

Extend functionality with plugins and integrations

Adapt the editor to your workflows with a flexible plugin system.

Import data from external services
Use plugins for advanced calculations
Translate content directly in spreadsheets
Insert media and external content

Start editing for free

Use spreadsheets across industries and teams

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Connect. Integrate. Build.

Connect ONLYOFFICE Docs and apps to your platform, embed into your ecosystem, or build your own workspace.

Connect

Use 50+ ready connectors for popular platforms

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Integrate

Embed into your platform using standard protocols or API

Check samples

Build

Build your own document workspace with modular apps.

Try in the cloud

ONLYOFFICE desktop and mobile appsONLYOFFICE apps

Your documents, everywhere

Access, edit, and collaborate on documents from any device without losing control over your data

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Why choose ONLYOFFICE

A powerful alternative to Excel and Google Sheets

Open and edit XLSX with perfect compatibility - no broken formatting or formulas

Collaborate in real time with no version conflicts or data loss

Built-in AI with privacy-first approach

Keep full control of your data with secure cloud or self-hosted deployment

Integrate easily into your existing tools and workflows

Feature	ONLYOFFICE	Google Sheets	Excel Online
XLSX compatibility	True native support, no formatting loss	Partial, formatting may break	Native support
Co-editing modes	Fast & Strict modes for flexible workflows	One mode only	One mode only
Self-hosting / data control	Full control, on-premise available	Cloud-only	Cloud-only
Built-in AI	Privacy-first AI (self-hosted possible)	Cloud-based AI	Cloud-based AI

See it in action

Edit XLSX files, build charts, and collaborate with your team - all in one place. Experience fast performance, smooth editing, and full compatibility in your browser.