CSV to XLSX
Produce a spreadsheet with column names and types you review, and stop text from being treated as formulas.
Paste CSV or cells copied from a sheet, or upload a CSV file. The first row becomes a bold, frozen header.
Your result
Paste or upload a table to turn it into an Excel file.
How to use it
- Paste the table or upload a CSV.
- Name the sheet if you like.
- Download the XLSX.
Examples
- Numbers1250.50 A number Excel shows as 1250.50
- Phone0501234567 Stays text with its leading zero
- Equals sign=SUM(A1) Text, not a formula
Tool details and privacy
Turn CSV or copied cells into an Excel (.xlsx) file with a bold frozen header, real numbers, and a right-to-left sheet when it holds Arabic.
An Arabic CSV can open garbled in Excel; an XLSX file opens cleanly.
Options
- Sheet name up to 31 characters.
Limits
- Up to 5,000 rows and 200 columns.
- No colours or formulas are created.
Privacy
What you type or open stays in your browser. Nothing is uploaded or saved on the server.
Questions
Do numbers become numbers?
Yes, except those starting with a zero.
Does the sheet open right to left?
Yes, when it holds Arabic text.
Does a cell starting with = run as a formula?
No, it stays text.
Is the table uploaded?
No.