Convert CSV to Excel (XLSX)
Convert CSV files to Excel XLSX online — proper columns, UTF-8 safe, opens cleanly in Excel and Google Sheets.
How to use CSV to Excel
Converting properly — instead of double-clicking the CSV — is how you avoid Excel's classic mangling: Bangla and other UTF-8 text turning to junk, long numbers becoming 1.23E+15, leading zeros vanishing. The tool parses the CSV cleanly and writes a real .xlsx with each field in its own column.
- Drop your file into the box above, or click it to browse. You can also paste from the clipboard.
- Adjust the options to taste — the defaults are sensible for most cases.
- Press Process and watch the progress bar; everything runs on your device.
- Download your result — individually, or as a ZIP when there are several files.
Like every tool on ImageCompressorKits, this runs 100% in your browser: your file is never uploaded to any server, which makes it safe to use even with private documents — and it keeps working if you go offline after the page loads.
Frequently asked questions
Why not just open the CSV in Excel directly?
Excel guesses the encoding and delimiter, and guesses wrong often — especially with UTF-8 text and phone-number-like values. A proper conversion removes the guessing.
My CSV uses semicolons — supported?
Yes, the delimiter is detected automatically among commas, semicolons and tabs.
Is this tool really free?
Yes — completely free, with no signup, no watermark, and no file limits beyond what your device's memory can handle.
Are my files private?
Yes. Processing happens locally in your browser via JavaScript; nothing is transmitted or stored. See our privacy policy for the full picture.