EasyXLS

How to import Excel file to DataTable in C# and VB.NET

Concept

EasyXLS™ library allows you to import Excel data to DataTable. The data can be imported from an Excel sheet or from the active Excel sheet. The entire sheet data or only data from ranges of cells can be imported.

EasyXLS can be successfully used to also import large Excel files having big volume of data with fast importing time.

The source code samples can be integrated in:
- ASP.NET web pages
- Windows applications
- Windows Forms (WinForms)
- Console applications
- Windows service applications
- ASP.NET MVC web applications

EasyXLS permits you to import Excel files without Excel installed, without OLEDB, without Interop or any other additional software installed.

Concept in action

The below example shows how to import Excel to DataTable in C# and VB.NET.

Source code sample

C#.NET
VB.NET

Import Excel file having one sheet to DataTable

Importing the Excel file data to DataTable, if the Excel file has only one sheet, is the easiest approach. The Excel data can be imported with one single line of code using:
- ExcelDocument.easy_ReadXLSActiveSheet_AsDataSet method for XLS file
- ExcelDocument.easy_ReadXLSXActiveSheet_AsDataSet method for XLSX file
- ExcelDocument.easy_ReadXLSBActiveSheet_AsDataSet method for XLSB file

The above code sample shows how to achieve this goal.

Import Excel file having multiple sheets to DataTable

There are three approaches for importing data from an Excel file with multiple sheets.

I. Usually the first sheet is the active sheet inside an Excel file. If this is your case or if you are importing data from another active sheet use:
- ExcelDocument.easy_ReadXLSActiveSheet_AsDataSet method for XLS file
- ExcelDocument.easy_ReadXLSXActiveSheet_AsDataSet method for XLSX file
- ExcelDocument.easy_ReadXLSBActiveSheet_AsDataSet method for XLSB file

II. For importing data from an Excel sheet and the name of the sheet is known, EasyXLS recommends the use of:
- ExcelDocument.easy_ReadXLSSheet_AsDataSet method for XLS file
- ExcelDocument.easy_ReadXLSXSheet_AsDataSet method for XLSX file
- ExcelDocument.easy_ReadXLSBSheet_AsDataSet method for XLSB file

III. For importing data from an Excel sheet and the name of the sheet is not known, the first step is to find the sheet by reading the Excel file using:
- ExcelDocument.easy_LoadXLSFile method for XLS file
- ExcelDocument.easy_LoadXLSXFile method for XLSX file
- ExcelDocument.easy_LoadXLSBFile method for XLSB file

Then, import the sheet data in DataTable using ExcelDocument.easy_ReadExcelWorksheet_AsDataSet method.

Import range of Excel cells to DataTable

EasyXLS enables you to import Excel data to DataTable either from the entire sheet or from a range of cells. Importing only a range of cells is a very useful option especially for large Excel files because it reduces the speed of the import process.

In order to import multiple cell ranges at once from Excel sheet, the range parameter must be passed to the method as union of ranges (multiple ranges separated by comma).

All the methods that allow importing Excel to DataSet have parameters that permit importing only ranges of cells.

Import XLSX, XLSB, XLSM and XLS files to DataTable

This code sample shows how to import XLS file to DataTable. In a similar way, you can import XLSX, XLSM, XLSB files to DataTable using:
- ExcelDocument.easy_ReadXLSXActiveSheet_AsDataSet or ExcelDocument.easy_ReadXLSXSheet_AsDataSet method for XLSX and XLSM files
- ExcelDocument.easy_ReadXLSBActiveSheet_AsDataSet or ExcelDocument.easy_ReadXLSBSheet_AsDataSet method for XLSB files

Getting started with EasyXLS Excel library

To download the trial version of EasyXLS Excel Library, press the below button:

Download EasyXLS™ Excel Library for .NET

If you already own a license key, you may login and download EasyXLS from your account.

After installation, you will need to create a C# or VB.NET project and add a reference to EasyXLS.dll.



Available for: Professional, Excel Reader
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EasyXLS Excel libraries:

.NET
.NET Excel Library
full .NET version to import, export or convert Excel files
.NET Excel Reader
.NET version to read and import Excel files
Download EasyXLS™ Excel Library for .NET

File formats:

MS Excel 97
MS Excel 2003
MS Excel 2007
MS Excel 2010
MS Excel 2013
MS Excel 2016
XLS XLSX XLSM XLSB
XML HTML CSV TXT