Convert CSV to Excel
or click to upload
CSV / TSV
Turn CSV files into real Excel workbooks with correct columns, numbers and widths. Delimiters are detected automatically and your data never leaves your browser.
- No watermarks
- Fast conversion
- 100 % in-browser
- Zero sign-up
How It Works
Convert CSV to Excel in three quick steps.
Upload CSV files
Drag and drop CSV files or browse your device. You can add several at once.
Convert to Excel
Your browser converts every file locally, so nothing is uploaded.
Download Excel
Save your Excel file, or a ZIP when you converted several files.
What is a CSV to Excel converter?
A CSV file is plain text, so opening it in Excel can scramble columns, turn long IDs into scientific notation or strip leading zeros. A CSV to Excel converter reads the file with the right delimiter and writes a proper .xlsx workbook, so the data is ready to sort, filter and format straight away.
Dates are kept exactly as written in the CSV. Excel can convert them with Text to Columns or the Format Cells dialog once the file is open.
Delimiter auto-detection
Commas, semicolons, tabs and pipes are detected from the file, which fixes the common problem of everything landing in column A.
Numbers become numbers
Plain numbers are stored as numeric cells so you can sum and chart them. Values like 007 or long ID numbers are kept as text so nothing is changed.
Quoted fields handled
Fields with quotes, line breaks and embedded delimiters are parsed correctly.
Column widths set for you
Columns are sized to their content so the sheet is readable when it opens.
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Simple CSV to Excel Conversion
A fast, private way to turn CSV files into Excel.
Quick Conversion
Convert CSV to Excel in seconds. Everything is processed on your device, so there is no upload wait.
Private by Design
Your files never leave your browser. Nothing is uploaded to a server and nothing is stored.
Works Everywhere
Use it on desktop, tablet or phone. There is no software to install and no extension needed.
Completely Free
No account, no watermark and no limit on how many files you convert.
Frequently Asked Questions
Common questions about CSV to Excel conversion.
Upload your CSV file, press Convert and download the .xlsx workbook. Several CSV files are delivered together as a ZIP.