AI Spreadsheet Editor — Excel Alternative
Edit .xlsx files with a custom-built Rust engine for heavy calculations. Ask AI to write complex formulas or reformat massive datasets instantly — fully offline, fully private, free trial available.
Free trial available — plans from $0.59/mo after that. see pricing in your currency
Everything you need, fully local
No cloud, no uploads, no account required. Your files stay on your device.
AI formula generator
Describe what you want in plain English — Rix AI writes the exact formula, including nested logic, lookups and array functions.
Blazing-fast Rust engine
A native sidecar core handles huge datasets, recalculations and formatting without freezing your device.
Byte-preserving .xlsx
Only the exact cells you change are altered. Files stay perfectly compatible when sent back to Microsoft Excel users.
100% offline
No cloud spreadsheet, no sync, no uploads. Your financial and business data never leaves your machine.
Unlimited spreadsheets
Create unlimited spreadsheets on every paid plan with no watermarks and no time limits.
Mass dataset formatting
Clean, sort, dedupe and restyle thousands of rows in seconds with a single AI command.
Rixoffice vs Excel & Google Sheets
Keep Microsoft file compatibility while adding local AI — free trial available, then simple pricing.
| Feature | Rixoffice | Microsoft | |
|---|---|---|---|
| Free Trial Available | ✅ | ❌ | ❌ |
| AI Formula Generation | ✅ Local | ⚠️ Add-in | ⚠️ Cloud |
| Works Fully Offline | ✅ | ⚠️ Partial | ❌ |
| Data Never Leaves Device | ✅ | ❌ | ❌ |
| .xlsx Byte-Preserving | ✅ | ✅ | ⚠️ Partial |
| Rust Fast Recalculation | ✅ | ❌ | ❌ |
Frequently asked questions
Is Rixoffice a free Excel alternative?
Rixoffice offers a free trial for new users to try manual editing first. After the trial, simple pricing starts at $0.59/month, cancel anytime.
Can the AI write Excel formulas for me?
Yes. Select any cell, describe the calculation in plain language, and Rix AI generates the formula for you. AI features are included on paid plans starting at $1.78/month, shown in your local currency.
Will my files work in Microsoft Excel?
Yes. RixSheets uses a byte-preserving engine — only the exact cells you change are modified, so files stay perfectly compatible with Microsoft Excel and other .xlsx applications.
Is my spreadsheet data private?
Completely. Everything is processed locally on your device with zero cloud dependency. Your financial models, client data and business numbers never leave your machine.
Can it handle large datasets?
Yes. A custom-built Rust sidecar engine performs heavy calculations, sorting and formatting on large datasets without freezing, even on modest hardware.
Start today. Upgrade when you want AI.
Download Rixoffice today — every editor included, unlimited documents, and prices shown automatically in your local currency.
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