try
// Write data to cells worksheet.Cells[1, 1] = "Product"; worksheet.Cells[1, 2] = "Sales"; worksheet.Cells[2, 1] = "Laptop"; worksheet.Cells[2, 2] = 1500; worksheet.Cells[3, 1] = "Mouse"; worksheet.Cells[3, 2] = 25; microsoft.office.interop.excel version 15.0.0.0
Use Microsoft.Office.Interop.Excel only for desktop automation where Excel is already installed and user interaction is acceptable. For server-side (ASP.NET, Windows Service) or bulk processing, use Open XML SDK or EPPlus . 9. Summary Microsoft.Office.Interop.Excel version 15.0.0.0 is the official managed bridge to Excel 2013 . While powerful for desktop automation, it requires careful COM resource management, proper Excel installation, and attention to version compatibility. For new projects, consider embedding interop types or moving to lightweight libraries unless full Excel fidelity and macro execution are mandatory. try // Write data to cells worksheet
// Add a new workbook workbook = excelApp.Workbooks.Add(); worksheet = (Excel.Worksheet)workbook.Sheets[1]; Summary Microsoft
Excel.Application excelApp = null; Excel.Workbook workbook = null; Excel.Worksheet worksheet = null;
using Excel = Microsoft.Office.Interop.Excel; public void CreateExcelReport()
| Aspect | Verdict | |--------|---------| | | Moderate (COM complexity) | | Performance | Slow for large data | | Reliability | High if coded carefully | | Deployment | Heavy (requires Office) | | Best suited for | Desktop reporting, user-driven automation, legacy integrations | Document Version: 1.0 Last Updated: 2025 Applicable to: .NET Framework 4.0 – 4.8, .NET Core (via interop compatibility pack with limitations)