CSV to Excel

Convert between CSV and Excel (XLSX) formats in both directions. Upload a CSV or TSV file to get XLSX, or upload an XLSX file to get CSV.

API Endpoint

POST /api/v1/tools/csv-excel

Accepts multipart form data with a CSV, TSV, or XLSX file and a JSON settings field.

Parameters

Parameter	Type	Required	Default	Description
sheet	integer	No	1	Worksheet number to export when converting from XLSX (min 1)

Example Request

CSV to Excel:

curl -X POST http://localhost:1349/api/v1/tools/csv-excel \
  -H "Authorization: Bearer si_your-api-key" \
  -F "[email protected]" \
  -F 'settings={"sheet": 1}'

Excel to CSV:

curl -X POST http://localhost:1349/api/v1/tools/csv-excel \
  -H "Authorization: Bearer si_your-api-key" \
  -F "[email protected]" \
  -F 'settings={"sheet": 2}'

Example Response

{
  "jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
  "downloadUrl": "/api/v1/download/a1b2c3d4-e5f6-7890-abcd-ef1234567890/data.xlsx",
  "originalSize": 2048,
  "processedSize": 5120
}

Notes

• Conversion direction is auto-detected from the input file extension: .csv or .tsv produces .xlsx, and .xlsx produces .csv.
• The sheet parameter only applies when converting from XLSX. It selects which worksheet to export.
• TSV (tab-separated values) files are supported alongside CSV.