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Spreadsheet Convert

Convert between spreadsheet formats (CSV, XLSX, JSON, ODS, PDF).

GET 10 credits /v1/convert/spreadsheet

curl -OJ "https://convert.toolkitapi.io/v1/convert/spreadsheet?url=https://toolkitapi.io/data.csv&from_format=csv&to_format=xlsx"

import httpx

resp = httpx.get(
    "https://convert.toolkitapi.io/v1/convert/spreadsheet?url=https://toolkitapi.io/data.csv&from_format=csv&to_format=xlsx",
)
print(resp.json())

const resp = await fetch("https://convert.toolkitapi.io/v1/convert/spreadsheet?url=https://toolkitapi.io/data.csv&from_format=csv&to_format=xlsx", {
});
const data = await resp.json();
console.log(data);

# See curl example

Response 200 OK

Binary spreadsheet file streamed as a download (Content-Type depends on to_format)

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Live Demo

Response

Description

Convert between spreadsheet formats (CSV, XLSX, JSON, ODS, PDF).

How to Use

1

1. Host your source file or point to it with a public URL.

2

2. Call this endpoint with `url`, `from_format`, and `to_format`.

3

3. Save the streamed file using the `Content-Disposition` filename.

About This Tool

Spreadsheet Convert is the unified endpoint for moving tabular data between supported spreadsheet formats: `csv`, `xlsx`, `xls`, `xlsm`, `ods`, `json`, and `pdf`. Pass a source URL (or inline data via POST) plus the source and target formats, and the endpoint returns the converted file as a download.

Internally, the service normalizes all inputs to an intermediate tabular representation, so format-specific features (formulas, merged cells, styles) are preserved where possible and gracefully flattened where not.

Why Use This Tool

ODS → XLSX migration — Normalize mixed spreadsheet archives
XLSX → PDF reports — Generate shareable, read-only reports
CSV → JSON — Feed tabular data into APIs and document stores
JSON → XLSX — Render API responses as downloadable workbooks

Frequently Asked Questions

Are formulas preserved?

When converting between Excel-compatible formats (xlsx ↔ ods ↔ xlsm), formulas are preserved. Converting to CSV, JSON, or PDF evaluates formulas to their cached values.

What about charts and pivot tables?

Charts and pivot tables are dropped on formats that don't support them (CSV, JSON). XLSX-to-ODS preserves charts where compatible.

Is PDF a supported target?

Yes — `to_format=pdf` renders the workbook's print layout as a PDF.

Start using Spreadsheet Convert now

Get your free API key and make your first request in under a minute.

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