---
title: "Load a preview of the file"
method: GET
path: "/w/{workspace}/job_helpers/load_file_preview"
tags: ["helpers"]
---

# Load a preview of the file

`GET /w/{workspace}/job_helpers/load_file_preview`

## Path parameters

- `workspace` string, required

## Query parameters

- `file_key` string, required
- `file_size_in_bytes` integer
- `file_mime_type` string
- `csv_separator` string
- `csv_has_header` boolean
- `read_bytes_from` integer
- `read_bytes_length` integer
- `storage` string
- `s3_resource_path` string

## Response `200`

FilePreview

- WindmillFilePreview
  - `msg` string
  - `content` string
  - `content_type` 'RawText' | 'Csv' | 'Parquet' | 'Unknown', required

## Changes

- **2026-07-24** `acf00c25b687` — 1 info
  - added the new optional `query` request parameter `s3_resource_path`

[Change history](https://skmtc.dev/windmill/apis/windmill-api/changes/w/:workspace/job_helpers/load_file_preview/get.md)

---

[API](https://skmtc.dev/windmill/apis/windmill-api.md) · [All operations](https://skmtc.dev/windmill/apis/windmill-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/windmill/windmill-api/revisions/7b281701c340/schema)