Can I add multiple sheets?

Not yet — current version creates one sheet per file. Multi-sheet support is on the roadmap.

CSV to XLSX

Wrap a CSV file (or pasted CSV) into a single-sheet Excel .xlsx file. Pick the delimiter, sheet name, and output filename.

Drag a .csv file here or browse — or paste CSV below

Delimiter Sheet name Output filename

CSV input

How to use CSV to XLSX

Drop or paste your CSV.
Set sheet name and output filename.
Click Build XLSX, then Download.

What is CSV to XLSX?

The reverse of XLSX-to-CSV — packages CSV data into a real .xlsx workbook compatible with Excel, Google Sheets, and Numbers. Useful when downstream systems require Excel files but you have CSV.

FAQ

Can I add multiple sheets?: Not yet — current version creates one sheet per file. Multi-sheet support is on the roadmap.

Related tools

XLSX to CSV
CSV ↔ JSON
CSV Viewer