Sheets: a free online spreadsheet
Build spreadsheets in your browser, open and edit Excel (.xlsx) and CSV files, and download them again as Excel.
Why use A1 Sheets
Works with Excel files
Open an .xlsx or .csv file, edit it, and download it again as an Excel workbook.
Formulas and charts
Add up, average and look things up with formulas, and turn your data into charts.
Spreadsheet templates
Budgets, trackers, schedules and invoices, ready to use.
On every device
Use it in any browser or in the iPhone, iPad and Android apps.
Questions
Is A1 Sheets free?
Yes. You can make, open and download spreadsheets for free.
Can I open an Excel file online?
Yes. Choose Open a file and pick an .xlsx or .csv file. Edit it in the browser and download it again as .xlsx.
Is it a free alternative to Excel or Google Sheets?
For everyday spreadsheets, yes: it opens and saves Excel files and runs in the browser. A1 Office is not affiliated with Microsoft or Google.
Do I need an account?
No. Without an account your work stays on this device. Sign in to save spreadsheets to your account.