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To get started with editing Excel files in C#, you'll need to install the IronXL library by adding the corresponding NuGet package to your project. Once installed, you can import the necessary namespaces and start using the library's classes and methods to interact with Excel files. The IronXL library provides a range of functionality for editing Excel files. You can open an existing Excel file, modify its contents, add or remove sheets, update cell values, apply formatting, and much more. Whether you need to update specific cells, add formulas, or perform complex data manipulations, the library's API offers the flexibility to accomplish your requirements. When editing Excel files programmatically, it's essential to consider the performance and memory implications, especially when working with large files. The IronXL library optimizes memory usage and provides efficient algorithms to handle large Excel files without compromising performance. Once you've made the necessary modifications to the Excel file, you can save the changes back to the original file or create a new file with the updated data. The library supports various Excel file formats, such as XLSX and CSV, allowing you to work with files compatible with different versions of Excel. Tutorial is available at homepage