Ragve

CSV · XLSX

CSV ↔ XLSX converter

Turn CSV into an Excel workbook, or export workbook sheets as separate CSV files.

Up to 10 files · 20 MB total · 100,000 data rows · 2 million cells. XLSX: up to 20 sheets. First row is the header.

CSV ↔ XLSX converterCSV / XLSX
Protect CSV from spreadsheet formula injection

Prefixes cells beginning with =, +, -, @ (including leading spaces) with an apostrophe. This changes their text; turn off only for trusted data. XLSX values are stored as text.

✓ CSV · XLSX✓ 20 MB✓ Privacy

How it works

Choose your files and options, run the operation, then inspect and download the actual output on a separate results page. You can cancel processing at any time.

01

Choose files

Up to 10 files · 20 MB total · 100,000 data rows · 2 million cells. XLSX: up to 20 sheets. First row is the header.

02

Process files

Turn CSV into an Excel workbook, or export workbook sheets as separate CSV files.

03

Download

Results stay on this browser for one hour. Clearing browser storage removes them. They are never sent to our server.

Tools

CSV cleaner

Trim spaces, remove empty rows and keep one copy of each repeated row.

Select, sort & merge

Choose columns, sort rows and combine CSV files with matching headers.

CSV ↔ XLSX converter

Turn CSV into an Excel workbook, or export workbook sheets as separate CSV files.

Before you start

CSV has no styling or cell types. Values are handled as text so identifiers and leading zeros can be preserved. XLSX exports use displayed cell values, not formulas, charts, formatting or macros. Formula cells with no cached value may be blank. CSV files must have the same number of cells on every row. Merge requires identical headers and order.

Try an example

Create a CSV with Name,City as the header, followed by Ada,London twice. The cleaner keeps one Ada row when duplicate removal is selected.

example.csv