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[Source] .NET/C# uses ClosedXML to read Excel into a DataTable

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Posted on 2025-6-15 22:15:17 | | | |
Requirements: There is a data import function in the website, and the data from the Excel table needs to be imported into the database. Previously, we have used NPOI, EPPlus, etc., and this article uses ClosedXML to read the contents of an excel table to DataTable.

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ClosedXML is a .NET library for reading, manipulating, and writing Excel 2007+ (.xlsx, .xlsm) files. It aims to provide an intuitive and user-friendly interface for handling the underlying OpenXML API. Based on the Open XML SDK, it only supports .xlsx format and does not support .xls format.

Open Source Address:The hyperlink login is visible.
Documentation:The hyperlink login is visible.

First, find a random .xlsx file from the Internet, link:The hyperlink login is visible.

.NET/C# uses ClosedXML to read Excel into a DataTable, as shown below:



The project is cited as follows:

The code is as follows:

Read all sheet pages into the DataSet code as follows:

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