Turn a UTF-8 CSV file into an XLSX workbook, using the default comma delimiter or a supported delimiter you provide.
Spreadsheet Tools
Use the CSV to Excel tool
Direct browser-to-API processing
How to use CSV to Excel
- Choose one .csv file up to 25 MiB.
- Leave the delimiter blank for a comma, or enter the single character used between fields.
- Select Convert to Excel and download the generated .xlsx workbook.
About CSV to Excel
CSV stores rows and columns as delimited text, while XLSX places that table in an Excel workbook. The converter reads the CSV as UTF-8 and creates an XLSX file; it cannot recreate formatting or workbook features that were never present in the CSV.
Why use this tool
- Open delimited text as a standard XLSX workbook.
- Override the delimiter for non-comma datasets.
- Move tabular data into an easier workbook format.
Privacy and security
The CSV is sent straight from your browser to the Choosify document API. It does not pass through WordPress or enter its Media Library, database, or uploads folder. API processing follows the backend’s configured behavior.
Frequently asked questions
Which delimiter is used if I leave the field blank?
The API uses a comma by default. You can supply one other delimiter character when the source file uses a different separator.
Which CSV files are accepted?
Upload a non-empty .csv file up to 25 MiB. The API also checks the media type and confirms that the file appears to contain text rather than binary data.
Will the conversion restore colors, formulas, or charts?
No. CSV does not carry workbook styling, charts, or native Excel formulas as workbook objects, so the converter creates a workbook from the tabular text it receives.
Why do my columns look incorrect after conversion?
The chosen delimiter must match the character separating fields in the source CSV. Check the file’s separator and try again with the correct single character.