Online Excel Editor
Professional spreadsheet editing without the Microsoft price tag. Modify your .xlsx files with industry-grade privacy.
Click or Drag Excel file here
Live Cell Editing
Modify values, update headers, and correct data points instantly. Our interface mirrors the spreadsheet experience you're used to.
Structural Control
Hide/show Column, delete junk data, or sort columns. Manage your workbook's architecture without installing heavy software.
Secure Export
Save your work back to XLSX
Precision Data Control
Don't just view your data—master it with our advanced toolbar features.
Column Toggle
Hide unnecessary columns to focus on what matters. Perfect for viewing wide spreadsheets on smaller screens.
Instant Sorting
Sort any column (A-Z or numerical) with a single click. Our engine handles complex data types automatically.
Row Selection
Select specific records using checkboxes. Isolate exactly the data you need without complicated formulas.
Targeted Export
Only export what you've selected or filtered. Turn a 10,000-row file into a 10-row PDF in seconds.
Clean, Modify, and Secure Your Excel Data
Our Online XLSX Editor is built for scenarios where privacy and speed are non-negotiable. Whether you are correcting a financial statement or sanitizing a client database, you can trust that your data never leaves your computer.
Ideal For:
- 🔹 Privacy-Conscious Users: Data stays in RAM.
- 🔹 Fast Corrections: Fix typos without Office 365.
- 🔹 Chromebook Users: No installation required.
- 🔹 Data Cleaning: Remove rows before DB import.
Editor Compatibility:
Fully supports .xlsx (Excel 2007+) and .xls (Legacy Excel). Note: To edit .csv or .json files, please use our dedicated tools below for the best experience.
Excel Editor
Common Questions
Everything you need to know about managing your spreadsheets securely in the browser.
Can I export only specific rows or columns?
Yes. Our tool supports selective exporting. You can use the row checkboxes to select specific data or use the column visibility toggle to hide fields. When you click "Export," only the rows and columns currently visible or selected will be included in your new file.
Is my data saved on your servers?
Never. We use a privacy-first "Zero-Server" architecture. Your XLSX file is read into your browser's local memory (RAM) and processed there. Once you close the tab, the data is gone forever. This makes it safe for sensitive corporate or financial data.
Does it support large Excel files?
Yes, our editor uses a virtualized rendering engine. This allows you to search, sort, and edit workbooks with 100,000+ rows smoothly without causing your browser to hang or crash.
Can I use this on a phone or tablet?
Absolutely. The editor is fully responsive. You can use the "Hide Columns" feature to make large spreadsheets easier to manage on smaller mobile screens.