CSV to XLSX Converter

Convert raw CSV text files into formatted Microsoft Excel (.xlsx) workbooks with auto-fitted columns.

Convert to XLSX. Max 50 MB per file.

Output Quality:

Encrypted & Private • Auto-deleted after 60m

How to Use CSV to XLSX Converter

Select your comma-separated file.

Auto-detect numbers, dates, and text columns.

Open in Microsoft Excel or Google Sheets.

Business analysts, accountants, and administrators formatting raw exports from Stripe, Shopify, or SQL into presentable Excel files.

Formats raw delimited records into styled Excel tables.

Will CSV to XLSX preserve leading zeros in phone numbers or ZIP codes?

Yes! Our parser detects formatted alphanumeric columns to avoid dropping leading zeros.

Are document formatting, mathematical equations, and charts preserved?

Can I convert multiple files in batch at the same time?

What is the maximum file size limit for CSV to XLSX Converter?

Is CSV to XLSX Converter safe and secure for sensitive or confidential files?

Do I need to install any software, browser extensions, or plugins?