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#IMPORT DATA FROM EXCEL TO EXCEL DEPENDING ON DATE HOW TO#

XSSFWorkbook: It is a class representing the XLSX file.HSSFCell: It is a class representing a cell in a row of XLS file.HSSFRow: It is a class representing a row in the sheet of XLS file.HSSFSheet: It is a class representing the sheet in an XLS file.HSSFWorkbook: It is a class representing the XLS file.HSSFCell and XSSFCell implement Cell interface. It is a high-level representation of a cell in a row of the spreadsheet.

There are two concrete classes: HSSFRow and XSSFRow.

Row: It is also an interface that represents the row of the spreadsheet.

A sheet is a central structure of a workbook, which represents a grid of cells.

Sheet: It is an interface that represents an Excel worksheet.

It is an interface implement by HSSFWorkbook and XSSFWorkbook.

Workbook: It represents an Excel Workbook.

Interfaces and Classes in Apache POI Interfaces

XSSF (XML SpreadSheet Format) Implementation: It denotes an API that is working with Excel 2007 or later versions.

HSSF (Horrible SpreadSheet Format) Implementation: It denotes an API that is working with Excel 2003 or earlier versions.

The Apache POI library provides two implementations for reading excel files: What is Apache POI?Īpache POI (Poor Obfuscation Implementation) is a Java API for reading and writing Microsoft Documents in both formats.

We have to rely on the third-party library that is Apache POI. JDK does not provide direct API to read or write Microsoft Excel or Word document. In Java, reading excel file is not similar to read word file because of cells in excel file. In this section, we are going to learn how we can read data from an excel file.

#IMPORT DATA FROM EXCEL TO EXCEL DEPENDING ON DATE HOW TO#

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