This article demonstrates how to read Excel file in Java. It provides IDE setup instructions and a step-by-step guide, along with a working code example to build an XLSX reader in Java. In addition, it outlines different techniques to enhance data extraction depending on specific use cases.

Steps to Read Excel in Java

1. Prepare the environment with Aspose.Cells to read Excel worksheets
2. Get the source Excel file and access the spreadsheet using the Workbook.getWorksheets method
3. Retrieve the number of filled columns and rows
4. Define a loop to iterate the respective cells
5. Process the cells from the specified range using the Cell.getValue method

The steps above illustrate how to read Excel in Java. Initiate by reading the target Excel file and subsequently refer to the worksheet to extract the data. After that, loop over the data range and extract the value of each cell.

Code to Create XLSX Reader in Java

This basic code snippet illustrates creating an XLSX file reader in Java. Initially, the Workbook object loads the Excel file, and then a WorksheetCollection object fetches the desired worksheet through its index. Alternatively, worksheets can be selected by name, and you may modify the code to loop through all available worksheets to extract their data when required.

This article has covered how to read XLSX in Java. For information on freezing panes, check out the guide on Freeze Panes in Excel using Java.