Excel Formulas Cheat Sheet (for C# + ClosedXML)Working with Excel formulas in C#? Here’s your go-to reference for all supported ClosedXML functions — from string manipulation to math, date/time, and boolean logic. 🧮 Covers: ▪️ String, math & date functions

▪️ CountIf / SumIf criteria rules ▪️ SUBTOTAL and logical operators ▪️ Syntax gotchas & best practicesWhether you’re generating Excel files or debugging formulas, this cheat sheet has you covered. 📘 Read the full post by Wouter Van Schandevijl: itenium.be/blog/dotnet/ex…

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