Convert CSV to Excel
Convert a CSV file to an Excel spreadsheet. Runs entirely in your browser, so your data never leaves your device.
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Output
The result appears here as you type.
How to use Convert CSV to Excel
- 1. Paste your CSV. Drop the comma-separated rows into the input pane. Each row becomes a spreadsheet row and each comma-separated value becomes its own cell in the generated workbook.
- 2. Decide how numbers are stored. Turn on Store numeric values as numbers to have digit-only cells saved as real numbers you can sum and sort in Excel, instead of text that looks like numbers but can't be calculated on.
- 3. Download the workbook. Click generate and download the resulting csv.xlsx file. It opens directly in Excel, Numbers, Google Sheets or any other spreadsheet application that reads the .xlsx format.
When to use Convert CSV to Excel
Convert CSV to Excel wraps CSV rows into a proper .xlsx workbook, giving you real spreadsheet cells instead of a plain text file. It's the step between a raw data export and a file you can format, chart or share with someone who expects a spreadsheet.
- Handing off data to a non-technical colleague. A teammate who isn't comfortable with plain CSV files asks for the numbers in Excel. Converting first means they can open it and immediately start formatting or charting.
- Preparing a file for a system that requires .xlsx. Some import tools or accounting systems only accept Excel workbooks, not raw CSV. Converting a CSV export first avoids a rejected upload.
- Making sure numbers stay numbers. A CSV of prices or quantities needs to support sum formulas once it's opened. Turning on numeric storage means the cells behave as numbers, not text, from the moment the file opens.
Examples
Download an .xlsx workbook
Input
name,age Ada,36
Output
A csv.xlsx download that opens in Excel, Numbers or Google Sheets.
About the Convert CSV to Excel tool
Convert CSV to Excel runs as plain JavaScript in your browser tab, with no server behind it. Convert a CSV file to an Excel spreadsheet. Whatever you put in stays on your device from start to finish.
The tool is part of EditSafely's CSV Tools section, 133 single-purpose utilities built around the same idea: open the page, get the result, keep your data to yourself.
You can shape the output with the Store numeric values as numbers setting, and the result refreshes the moment you change it. The finished file is put together in browser memory and saved with the Download button, so it never touches a server on the way to your disk. A worked example further down the page shows exactly what the tool produces for a real input.
That local-first design has practical benefits beyond privacy. The tool keeps working on a flaky connection once the page has loaded, results are instant because nothing round-trips to a server, and it is safe to use with confidential material.
Frequently asked questions
Is Convert CSV to Excel free to use?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Is it safe to paste sensitive or confidential data?
Everything happens locally. Your browser downloads the tool's code once, then does all the processing itself; nothing you enter is transmitted, stored or logged. You can even go offline after the page loads and it will still work.
How much text can I process at once?
There is no fixed limit. Because the work happens on your own device rather than on a shared server, the practical ceiling is your machine's memory, which comfortably handles inputs far larger than typical online tools allow.
Do I need to sign up or install anything?
No. The tool works in any modern browser on desktop, tablet or phone. There is no account to create, no extension to add and no software to install.
How do I save the output?
Click the Download button once the result is ready. The file is built in your browser's memory and handed straight to your downloads folder, without passing through a server.