Microsoft.office.interop.excel Version 15.0.0.0 Now

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// Save file string savePath = @"C:\Reports\SalesReport.xlsx"; workbook.SaveAs(savePath, Excel.XlFileFormat.xlOpenXMLWorkbook); microsoft.office.interop.excel version 15.0.0.0

| 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) Excel.Application excelApp = null

1. Overview Microsoft.Office.Interop.Excel is a primary interop assembly (PIA) provided by Microsoft to allow .NET applications (C#, VB.NET, F#) to communicate with Microsoft Excel through COM (Component Object Model). Version 15.0.0.0 corresponds to Microsoft Office 2013 . Excel.Workbook workbook = null

Excel.Application excelApp = null; Excel.Workbook workbook = null; Excel.Worksheet worksheet = null;