Convert JSON to XLS/XLSX in Java

JSON files are a common format for storing and exchanging data across web, desktop, and mobile applications. Frequently, developers need to transform JSON data into Excel formats such as XLS or XLSX for reporting, analysis, or integration with other systems. This article explains how to convert a JSON file to Excel XLS or XLSX in Java using a powerful library.

Java Library for JSON to XLS Conversion

Aspose.Cells for Java is a comprehensive API that enables creation, editing, and conversion of spreadsheet documents. It supports over 100 file formats and provides high‑performance processing for large datasets. With Aspose.Cells you can directly import JSON data and export it to Excel without intermediate steps. Download the JAR file or add the library via Maven to start converting JSON to XLS/XLSX instantly.

Repository:

<repository>
	<id>AsposeJavaAPI</id>
	<name>Aspose Java API</name>
	<url>https://repository.aspose.com/repo/</url>
</repository>

Dependency:

<dependency>
	<groupId>com.aspose</groupId>
	<artifactId>aspose-cells</artifactId>
	<version>22.6</version>
</dependency>

Convert a JSON File to XLS in Java

Converting JSON to Excel with Aspose.Cells involves just two steps:

  1. Load the JSON file – Use the Workbook class to read the JSON content into a workbook object.
  2. Save as Excel – Call Workbook.save() and specify the target format (.xls or .xlsx).

The code snippet below demonstrates how to read a JSON file and save it as an XLS workbook.

Get a Free License

You can get a free temporary license to use Aspose.Cells for Java without evaluation limitations.

Conclusion

This guide showed you how to programmatically convert JSON files to XLS or XLSX in Java using Aspose.Cells. By loading JSON with the Workbook class and saving it in the desired Excel format, you can integrate seamless data conversion into any Java application. Explore additional features and detailed usage examples in the official documentation, and join the community to ask questions on the forum.

See Also