APIs › Document & File Utilities › XLSX to CSV

XLSX to CSV

Converts a worksheet to CSV with formula values rather than formula text. Macros are never executed.

POST /v1/convert/xlsx-to-csv $0.02 per call

Specification

Endpoint

POST /v1/convert/xlsx-to-csv

Price

$0.02 per call · tier advanced_analysis

Payment

x402 on X Layer (chain 196) · settled in USDG or USDT0 · scheme exact

Data source

Local sandboxed processing of the uploaded file

Timeout

120 seconds

Max request

20 MB

Version

1.0.0

Calling it

The first call returns a 402 with the payment challenge. Retry with a signed authorisation in the X-PAYMENT header — see the payment guide for the exact shape.

curl -i -X POST "https://api.dana-edu.pp.ua/v1/convert/xlsx-to-csv" \
  -H "content-type: application/json" \
  -d '{ ... }'

Response

Real output, captured by running this endpoint at build time — not written by hand. Volatile fields such as timestamps are elided. Captured 2026-07-30.

{
  "sheet_used": "Invoices",
  "sheets_available": [
    "Invoices"
  ],
  "row_count": 4,
  "column_count": 4,
  "formulas_evaluated": false,
  "truncated": false,
  "source_contained_macros": false,
  "output_size_bytes": 125,
  "output_filename": "<varies per call>",
  "output_base64": "<base64 payload elided from the published example>",
  "note": "Cells containing formulas are exported as their CACHED VALUE, saved by the application that last wrote the file. No formula is evaluated and no macro is executed."
}

Every response is wrapped in the same envelope: data plus warnings, sources, confidence, informational_only and a measured processing_ms. See the envelope reference.

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