Assembly
In today's data-driven landscape, the ability to pull, combine, and analyze information from a variety of spreadsheet sources isn’t just a convenience—it’s a competitive necessity. Teams across finance, marketing, product, and operations constantly juggle Apple Numbers, CSV dumps, TSV logs, and Excel workbooks, often spending precious hours cleaning and reconciling data before they can even begin to extract insights. That fragmented workflow slows decision-making, inflates costs, and introduces human error. Our solution rewrites that story. By offering a single, cloud-native API that speaks the native languages of every major spreadsheet format, we give you the power to turn a chaotic collection of files into a single, coherent data set in seconds. Imagine a world where a developer writes one line of code and instantly pulls together quarterly sales numbers from an Excel report, inventory levels from a CSV export, and forecast models stored in Apple Numbers—all without worrying about format quirks or security loopholes. The result is faster time-to-insight, lower operational overhead, and a data pipeline that scales as your business grows. Whether you're building a custom analytics dashboard, feeding a machine-learning model, or simply automating a weekly report, our platform acts as the connective tissue that unifies every spreadsheet format under one reliable, high-performance umbrella.
Main Features
The technical documentation page for the Assembly API is designed to get you from concept to implementation with zero friction. It opens with a concise “quick-start” guide that walks you through authenticating, configuring your first request, and handling responses—all in less than five minutes of reading. The API supports Apple Numbers, CSV, TSV, and the full suite of Excel files (.xlsx and .xls), ensuring that no matter where your data lives, it can be ingested and merged with a single, developer-friendly call. Security is baked in at every layer: all transmissions occur over TLS 1.3, OAuth 2.0 handles token-based access, and optional IP whitelisting adds an extra shield for enterprise environments. Performance benchmarks show sub-second latency for typical data sets, while bulk processing endpoints can handle millions of rows without breaking a sweat. Detailed schema definitions, error-code reference tables, and code snippets in JavaScript, Python, Java, and C# make integration straightforward for any tech stack. Finally, a comprehensive FAQ and community forum link provide ongoing support, ensuring that you can troubleshoot, optimize, and extend the API long after the initial deployment. With the Assembly API, merging your spreadsheet data is no longer a multi-step chore—it’s a single, elegant call that empowers developers to build smarter, faster, and more secure data workflows.
Documents
Parameters
- AppRequest.DataSourceName: A name of the data-source
- UploadFileRequest.OperationId: This is an operation id
- UploadFileRequest.Files: These are files you need to upload them to our online services, you can prepare the data in your very own way but it must follow the standard of the html input file.
Use The Endpoint
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Send a request that includes the files and the access token Chart API
curl -X 'POST' \ 'https://api.sheetize.cloud/chart' \ -H 'accept: text/plain' \ -H 'Authorization: Bearer The_Secret_Access_Token \ -H 'Content-Type: multipart/form-data' \ -F 'AppRequest.DataSourceName=TheNameOfTheDataSource' \ -F 'UploadFileRequest.OperationId=' \ -F 'UploadFileRequest.Files=@TestFile.xlsx;type=application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' -
The service will respond with a download URL for the processed file, in this example it is:
{ "name": "", "type": "1", "size": 900000, "description": "", "linkToDownload": "/download/AFolderName/AFileName.xlsx", "message": "", "statusCode": 200 } -
Send a request that includes the file name and the folder name to Download API
curl -X 'GET' \ 'https://api.sheetize.cloud/download/TheFolderName/TheFileName.xlsx' \ -H 'accept: */*' \ -H 'Authorization: Bearer TheAccessToken' - You will receive the file and you can either use it or simply forward it to the next step of your workflow.
