ngpepin/Collection-of-CSharp-ExcelDNA-UDFs

The project is a personal collection of Excel extensions with minimal adoption (2 stars). While it utilizes the robust Excel-DNA framework, it does not offer a novel architectural approach or a unique dataset that would provide a moat. Historically, such tools were vital for quant finance and heavy data users, but they are currently facing an existential threat from Microsoft's native 'Python in Excel' integration and the expansion of Power Query and Dynamic Array formulas. The 'in-memory storage' feature is a standard pattern in legacy Excel add-in development. Given the zero velocity and low engagement, it is likely a reference implementation or a personal utility rather than a defensible product. Any significant advancement in Excel's native engine (e.g., Copilot for Excel) would render these specific C# implementations obsolete for most users.