CSV to Excel converter
Convert a CSV file into an Excel workbook (XLSX) while keeping leading zeros, long ID numbers and accented characters exactly as they are.
or drop it here · up to 100 MB
$1.95, one timeNo subscriptionFile never stored
How to use CSV to Excel
- Choose or drop your CSV file.
- Every value is placed in its own cell, exactly as written.
- Pay once and download your XLSX.
What to expect
Opening a CSV directly in Excel often mangles it: ZIP codes lose their leading zeros, long account numbers turn into scientific notation and accented names become garbled. This converter keeps every value exactly as written in the file.
Quoted fields containing commas, quotes and line breaks are parsed correctly, and the file is read as UTF-8, so names like Café or Müller stay intact.
On most computers the conversion runs in your browser, so your data never leaves your device. That matters for customer lists and exports.
The result has one sheet, with the first row kept as your header row.
CSV to Excel FAQ
Will leading zeros be kept?
Yes. Values like 02134 stay exactly as written instead of turning into 2134.
What about long numbers like account IDs?
They're kept exactly as written, instead of being turned into scientific notation like 1.23E+19.
Does it handle commas inside values?
Yes. Quoted fields with commas, quotes or line breaks are read correctly.
Is my data uploaded?
On most computers, no: the workbook is created in your browser. Large files are handled on our server and deleted after download.