#if !NET472 using System.Runtime.Versioning; #endif namespace RhSolutions.Tools; #if !NET472 [SupportedOSPlatform("windows")] #endif public static class WorksheetExtensions { public static void AddValue(this Range range, double value) { if (range.Value2 == null) { range.Value2 = value; } else { range.Value2 += value; } } public static void AddValue(this Range range, string value) { if (range.Value2 == null) { range.Value2 = value; } else { range.Value2 = $"{range.Value2} {value}"; } } }