Read excel file in java using apache poi

Spreadsheets are the easier way to represent table like data and can give a visual representation of data in tabular format.

In this article, let us see how to extract the contents of the Excel sheet via java. Here there arise two cases where Maven is considered in the program or not. Discussing both of them as a prerequisite for a better understanding of the program.

Apache POI API basics are crucial before moving ahead, so the two main prefixes are required when working with Apache POI are as follows:

1. HSSF: denotes the API is for working with Excel 2003 and earlier.
2. XSSF: denotes the API is for working with Excel 2007 and later.

Following 4 interfaces are important and essential to go through

• Workbook: High-level representation of an Excel workbook.

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HSSFWorkbook and XSSFWorkbook.

• Sheet: High-level representation of an Excel worksheet. Typical implementing classes are HSSFSheetand XSSFSheet.
• Row: High–level representation of a row in a spreadsheet.

  HSSFRow and XSSFRow are two concrete classes.

• Cell: High-lev
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