Online Excel Editor
Open an .xlsx, .xls or .csv file and edit it right here — cells, formulas, formatting, rows and columns — then download the result. No account, no upload: your file never leaves your device.
Drop your file here or click to upload
Supports .xlsx, .xls, .xlsm, .xlsb, .csv · up to 50MB · or paste a file from your clipboard
You can also paste a table straight in from Excel or Google Sheets once a sheet is open. Only need to read a file? Open it in the read-only Excel Viewer.
Edit Excel files online without uploading them
Most tools that promise to edit Excel online do the same thing: you hand over your file, a server opens it, and you hope the copy is deleted later. That is a poor trade for a sales report, a payroll sheet or anything with customer data in it — and on plenty of corporate networks those sites are blocked outright.
This editor works differently. The page loads a spreadsheet engine into your browser, and your workbook is opened by that engine on your own machine. There is no upload step to wait through, no size tier to hit, and no account to create. If you want to prove it: open a file, switch off your wi-fi, and carry on editing. Everything keeps working, because nothing was going anywhere.
What you can do here
- Edit like a spreadsheet, not a form. Arrow keys, Tab and Enter move the cursor. Ctrl+arrow jumps to the edge of your data. Shift extends the selection. F2 or a double-click opens a cell. Ctrl+Z undoes.
- Write formulas that calculate. 169 functions, live recalculation in dependency order, and circular references flagged instead of silently wrong. Selecting a formula outlines the ranges it reads.
- Use dynamic arrays. UNIQUE, SORT, FILTER, SEQUENCE, TEXTSPLIT and the rest spill their results across the cells below and to the right, and resize as your data changes. Anything in the way stops the spill rather than being overwritten.
- Copy and paste between apps. Paste a block from Excel, Google Sheets or a web table and it lands as a proper grid. Copy from here and it pastes back with its layout intact.
- Fill and format. Drag the fill handle to continue 1, 2, 3 or Jan, Feb, Mar or dates a month apart. Set bold, colours, alignment, currency, percentages and date formats.
- Restructure. Insert and delete rows and columns — formulas are rewritten so they keep pointing at the right cells — sort a block, freeze panes, merge cells, and add or rename sheets.
- Find and replace across one sheet or the whole workbook, including inside formulas.
- Leave and come back. Your workbook is saved to this browser as you type, so a closed tab or a flat battery is not the end of the afternoon.
How to edit an Excel file online
- Open your workbook — Drag an .xlsx, .xls, .xlsm, .xlsb or .csv file onto the page, or start from a blank sheet. It opens straight away because there is nothing to upload.
- Edit it — Click a cell and type. Use the arrow keys, Tab and Enter to move, drag the fill handle to continue a series, write formulas starting with =, and format with the toolbar. Ctrl+Z undoes anything.
- Download the result — Press Ctrl+S or click Download .xlsx. Your formulas, formatting and layout are written into a fresh Excel file on your device.
Keyboard shortcuts
| Shortcut | What it does |
|---|---|
| F2 | Edit the selected cell |
| Ctrl + arrow | Jump to the edge of the data |
| Shift + arrow | Extend the selection |
| Ctrl + A | Select the whole sheet |
| Ctrl + C / X / V | Copy, cut and paste |
| Ctrl + D / R | Fill down, fill right |
| Ctrl + B / I / U | Bold, italic, underline |
| Ctrl + Z / Y | Undo and redo |
| Ctrl + F | Find and replace |
| Ctrl + ; | Insert today's date |
| Ctrl + S | Download the workbook as .xlsx |
The 169 functions this editor calculates
Rather than claim "all Excel formulas", here is the actual list. Anything outside it returns #NAME? rather than a wrong number, and formulas the editor cannot evaluate are still saved back into the file untouched.
Math: SUM, SUMSQ, PRODUCT, SUMPRODUCT, ABS, SIGN, ROUND, ROUNDUP, ROUNDDOWN, MROUND, CEILING, FLOOR, INT, TRUNC, MOD, QUOTIENT, POWER, SQRT, EXP, LN, LOG, LOG10, EVEN, ODD, FACT, GCD, LCM, PI, RAND, RANDBETWEEN, SIN, COS, TAN, ASIN, ACOS, ATAN, ATAN2, DEGREES, RADIANS
Statistics: AVERAGE, AVERAGEA, COUNT, COUNTA, COUNTBLANK, MAX, MIN, MEDIAN, MODE, STDEV, STDEV.S, STDEVP, STDEV.P, VAR, VARP, LARGE, SMALL, RANK, PERCENTILE, COUNTIF, COUNTIFS, SUMIF, SUMIFS, AVERAGEIF, AVERAGEIFS, MAXIFS, MINIFS
Logic: IF, IFS, IFERROR, IFNA, AND, OR, XOR, NOT, TRUE, FALSE, SWITCH
Text: CONCAT, CONCATENATE, TEXTJOIN, LEFT, RIGHT, MID, LEN, LOWER, UPPER, PROPER, TRIM, CLEAN, SUBSTITUTE, REPLACE, FIND, SEARCH, REPT, TEXT, VALUE, EXACT, CHAR, CODE, UNICHAR, UNICODE, T, TEXTBEFORE, TEXTAFTER
Lookup: VLOOKUP, HLOOKUP, XLOOKUP, LOOKUP, MATCH, XMATCH, INDEX, CHOOSE, ROW, COLUMN, ROWS, COLUMNS, TRANSPOSE
Array: UNIQUE, SORT, SORTBY, FILTER, SEQUENCE, RANDARRAY, VSTACK, HSTACK, TAKE, DROP, CHOOSEROWS, CHOOSECOLS, TOCOL, TOROW, TEXTSPLIT
Date: TODAY, NOW, DATE, TIME, YEAR, MONTH, DAY, HOUR, MINUTE, SECOND, WEEKDAY, WEEKNUM, DAYS, EDATE, EOMONTH, DATEDIF, NETWORKDAYS, WORKDAY, DATEVALUE
Info: ISBLANK, ISNUMBER, ISTEXT, ISNONTEXT, ISLOGICAL, ISERROR, ISERR, ISNA, ISEVEN, ISODD, NA, N, TYPE
Finance: PMT, FV, PV, NPER, NPV
Need a formula written for you? The function reference and the VLOOKUP and IF generators build them step by step.
Where an editor in a browser is the right tool
On a Chromebook or a Linux laptop with no Excel installed. On a work machine where IT has not provisioned Office and will not. On someone else's computer, where signing into your Microsoft account is not something you want to do. When a colleague emails an .xlsx and you need to fix one number before sending it back. And when the file is the kind of thing you would never upload to a stranger's server.
For a workbook that leans on macros, pivot tables or charts, open it in Excel or LibreOffice instead — this editor deliberately does not pretend to handle those.
Frequently Asked Questions
Yes. There is no account, no trial, no watermark, and no cap on how many files you edit. Open a workbook, edit it, download it, close the tab. The only limit is a 50 MB file size, which exists because the file is opened in your browser's memory rather than on a server.
No. The workbook is opened, edited and saved by JavaScript running in your own browser. There is no upload step and no server copy. You can check this yourself: load the page, turn off your wi-fi, and keep editing — everything still works, because nothing was being sent.
Yes. The editor includes a formula engine with 169 functions — SUM, IF, VLOOKUP, XLOOKUP, INDEX/MATCH, SUMIFS, TEXT, DATEDIF and the rest — and it recalculates as you type. Formulas already in your workbook keep working, and cells that hold a formula are marked with a small corner tick so you can tell a calculated value from a typed one.
Yes. A formula that returns more than one cell fills the block below and to the right of it, and the block updates when the source data does. If something is in the way the formula shows #SPILL! rather than overwriting your data, and clearing the obstruction brings the result back. The spilled cells are tinted, and selecting one shows the formula that produced it. They are written to the .xlsx as a real dynamic array formula, so Excel and LibreOffice re-spill them on open.
No. The .xlsx file is written directly, so bold, italic, underline, text and fill colours, alignment, number formats, column widths, row heights, merged cells, frozen panes, and any rows or columns the workbook had hidden all survive the round trip — as do your formulas, saved as formulas rather than as flattened values. Widths and heights are held to the same measurements they came in with, so opening and saving the same file repeatedly does not creep.
Your work is saved to this browser's local storage as you go, on your own device. Come back to this page and it offers to pick up where you left off. Nothing is stored anywhere else, and you can dismiss the draft to erase it.
You can open .xlsx, .xls, .xlsm, .xlsb, .csv and .tsv files, or paste a table straight in from Excel, Google Sheets or a web page. Edited workbooks download as .xlsx, and any single sheet can be exported as CSV.
Yes. It is a web page, so it runs anywhere with a modern browser and needs nothing installed and no Microsoft or Google account. Because the file never leaves the machine, it also works where company policy blocks file-upload sites.
It does not run macros or VBA, create or edit charts and pivot tables, or support real-time collaboration. Charts and pivot tables that already exist in a workbook are not shown and are not carried into the downloaded file — if a workbook depends on them, edit a copy or use Excel for that part.