Manually copying data from one Excel spreadsheet to another is time-consuming and increases the risk of missed data or formatting inconsistencies. However, you can merge XLS files programmatically using our Java REST API and make spreadsheet consolidation a smooth and repeatable process. This workflow replaces the process of accessing each file individually. In this article, you will explore the steps involved in merging XLS sheets in Java apps. Developers can utilize this functionality to combine multiple Excel XLS files into a single, well-structured workbook. Joining XLS documents through an automated solution helps keep information accurate and easy to manage.

Steps to Merge XLS Files Using Java

1. Download the GroupDocs.Merger Cloud SDK for Java and create a new project
2. Obtain and set up your API credentials with the Configuration class
3. Initialize the DocumentApi class for merging XLS files
4. Configure the source XLS files to join using FileInfo and JoinItem
5. Define the merging options, including the output file with JoinOptions
6. Process the request to join two XLS files with the join() method

Merging XLS files with the REST API is designed to be straightforward for Java developers. This feature works consistently across Windows, Linux, and macOS systems, without relying on locally installed spreadsheet software. The API preserves rows, columns, and sheet structures, reducing the need for manual cleanup afterward. It is handy for combining Excel reports from different teams, merging yearly financial sheets, or assembling datasets collected over time. Users from non-technical backgrounds can also benefit, as the process focuses more on results than on complex configuration.

Code to Merge XLS Files Using Java

GroupDocs.Merger Cloud Java SDK is a dependable option for developers looking to merge XLS files without the usual hassle of manual spreadsheet handling. It fits seamlessly into web-based and desktop solutions, requiring minimal setup to get started. The Java REST API is suitable for anyone who regularly works with Excel files, from students managing coursework data to businesses organizing operational spreadsheets. Furthermore, XLS file merger enables simplified editing, sharing, and long-term storage while keeping your data organized and accessible.

For related document operations, explore our detailed guide on Merging DOC Files using the Java REST API and expand your document management capabilities.