CSV to Excel
Convert CSV to XLSX while preserving leading zeros, long IDs and readable text.
Drop your file
or drag them here
How it works
- Phone numbers, tax IDs and codes like 0105536012345 stay exactly as written.
- Numbers become real numbers only when that can't change them; 1,234.50 keeps its format.
- Supported encodings include UTF-8 and Windows-874 (TIS-620); review the preview before export.
- Combine several CSVs into one workbook with a sheet per file.
Questions
Are my files uploaded?
No. This tool runs inside your browser on this device. ORDO's servers never receive the file, and the page's security policy blocks it from sending file data anywhere.
Why does Excel drop the leading zeros when I open a CSV directly?
Excel guesses types when it opens a CSV and turns 0812345678 into a number. ORDO writes an XLSX with those cells stored as text, so nothing is guessed.
Are semicolon- or tab-separated files supported?
Yes. The separator is detected automatically.