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Split Excel File using C# REST API

In this comprehensive, step‑by‑step tutorial we’ll show you how to split an Excel file using the C# REST API. Leveraging the C# Low‑Code API, you can automatically break a workbook into individual files by defining the start‑ and end‑sheet indexes of the source workbook. We’ll also cover how to choose the output format and specify the sheet range that should be exported to separate Excel files.

Prerequisite

Steps to Split Excel File into Multiple Files using C# REST Interface

  1. Define your clientId, clientSecret, and the API base URL required to authenticate with Aspose.Cells Cloud
  2. Instantiate the CellsApi object using your credentials and API endpoint to access cloud functionalities
  3. Specify the Excel workbook file that will be uploaded and later split
  4. Use the UploadFileRequest to upload the input file to Aspose Cloud
  5. Configure the PostWorkbookSplitRequest to split specific sheets (e.g. from sheets 1 to 4) and define the output format XLSX
  6. Send the split request using PostWorkbookSplit to divide the workbook into multiple parts
  7. Iterate over each resulting document in the response, download the file using DownloadFileRequest, and save it locally

These steps summarize how to separate Excel sheets into different files using C# REST Interface. Authenticate with Aspose.Cells Cloud by providing your client credentials and uploading the target Excel workbook. Configure the split parameters, execute the split operation, and download each resulting file to your local system.

Code to Split Excel into Multiple Files using C# RESTful Service

In this demo we built an Excel sheet splitter using the C# Low‑Code API. Leveraging the Aspose.Cells Cloud API, you can export each split worksheet to any supported format—including image types where you can define both horizontal and vertical resolutions. Every output file inherits the name of its source worksheet and is saved locally using the same filenames shown in the code above.

Congratulations—you’re now proficient at splitting Excel files with a C# REST API. When it’s time to reassemble those fragments, explore our companion guide: Combine Excel Files using C# REST API.

 

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