How to Read Excel File in C#

Using OleDB

To read Excel files in C#, OleDB is a practical approach. It allows for data access without relying on Office Interop libraries. Ensure the required OleDB data provider is installed before proceeding.

Reading CSV Files in C#

Excel files can be saved as CSV and read using a CSV reader library in C#. This method is efficient and avoids the need for Excel interop dependencies. Convert the .xlsx file to .csv format for this purpose.

LibXL Library

LibXL is a third-party library tailored for reading and writing Excel files using C#. It supports the .xlsx file extension and integrates seamlessly with C# applications.

Aspose.Cells for C#

Aspose.Cells is a robust C# library designed to work with Excel files. It offers extensive functionality for reading and writing and is a popular choice for developers.

JSON and Excel

JSON can be used in conjunction with C# and Excel for data interchange. This method is particularly useful for web-based applications.

MSExcel Interop

Microsoft Excel Interop provides a way to interact with Excel files directly from C#. Add a reference to Microsoft.Office.Interop.Excel.dll to your project. Remember, Excel must be installed on the host machine for interop to work.

Alternatives to Interop

Interop is not mandatory for Excel file operations in C#. Libraries like EPPlus offer functionality to read Excel files without the need for Office Interop.

Common Use Cases

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  Automating the process of data extraction from Excel reports for business analysis
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  Developing a feature to import user data from Excel spreadsheets for a CRM system
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  Creating a tool to convert Excel files into a different file format, such as CSV or XML
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  Implementing a system to periodically read and update inventory levels from an Excel-based stock management sheet
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  Building an application that aggregates and processes sales data from multiple Excel files for financial forecasting

Excel vs. Sourcetable: A Comparative Analysis

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Enhanced Productivity: With Sourcetable's AI features, users can expect a reduction in manual tasks and an increase in efficiency, which Excel's traditional functionalities may not match.

User-Friendly Automation: Sourcetable's AI copilot simplifies complex operations, making spreadsheet management more accessible to a wider range of users compared to Excel's conventional approach.