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Aspose.Cells  for Java

Merge CSV Formats in Java

Native CSV document merger using server-side Java APIs.

How to Merge CSV Files Using Java

In order to merge CSV file, we’ll use Aspose.Cells for Java API which is a feature-rich, powerful and easy to use merger API for Java platform. You can download its latest version directly from Maven and install it within your Maven-based project by adding the following configurations to the pom.xml.

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>version of aspose-cells API</version>
<classifier>jdk17</classifier>
</dependency>

Steps for Merging CSV Files in Java

A basic document merging and concatenating with Aspose.Cells for Java APIs can be done with just few lines of code.

  • Load the first CSV file with an instance of Workbook class.
  • Load the second CSV document with an instance of Workbook class.
  • Merge files using combine() method.
  • save the merged CSV file at specified path

System Requirements

Aspose.Cells for Java supports on all major platforms and Operating Systems. Please make sure that you have the following prerequisites.

  • Microsoft Windows or a compatible OS with Java Runtime Environment for JSP/JSF Application and Desktop Applications.
  • Get latest version of Aspose.Cells for Java directly from Maven .
 

Merge CSV Files - Java

// Open the first CSV file.
Workbook csvFile1 = new Workbook("chartsFileWithPath.csv");

// Define the second source book.
// Open the second CSV file.
Workbook csvFile2 = new Workbook("pictureFileWithPath.csv");

// Combining the two workbooks
csvFile1.combine(csvFile2);

// Save the target book file.
csvFile1.save("combinedFileWithPath.csv");  
 

Online CSV Merger Live Demos

About Aspose.Cells for Java API

Aspose.Cells API can be used to create, edit, convert and render Microsoft Excel formats to different formats. Moreover, it can be used for comprehensive charting, scalable reporting and reliable calculations within software applications. Aspose.Cells is a standalone API and it does not require any software like Microsoft or OpenOffice.

CSV What is CSV File Format

Files with CSV (Comma Separated Values) extension represent plain text files that contain records of data with comma separated values. Each line in a CSV file is a new record from the set of records contained in the file. Such files are generated when data transfer is intended from one storage system to another. Since all applications can recognize records separated by comma, import of such data files to database is done very conveniently. Almost all spreadsheet applications such as Microsoft Excel or OpenOffice Calc can import CSV without much effort. Data imported from such files is arranged in cells of a spreadsheet for representation to user.

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Other Supported Merging Formats

Using Java, One can also merge many other file formats including..

HTML (Hyper Text Markup Language)
MHTML (Web Page Archive Format)
ODS (OpenDocument Spreadsheet File)
TSV (Tab-Separated Values)
TXT (Text Document)
XLS (Excel Binary Format)
XLSB (Binary Excel Workbook File)
XLSM (Spreadsheet File)
XLSX (OOXML Excel File)
XLT (Microsoft Excel Template)
XLTM (Excel Macro-enabled Template)
XLTX (Office OpenXML Excel Template)