for Push.

DtoMapping/Attributes/ExcelColumnLetterAttribute.cs

@@ -0,0 +1,25 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace KssSmaPlaLib.DtoMapping.Attributes
+{
+    /// <summary>
+    /// Excel列レター属性（プロパティに付与）
+    /// </summary>
+    [AttributeUsage(AttributeTargets.Property)]
+    public class ExcelColumnLetterAttribute : Attribute
+    {
+        /// <summary>
+        /// Excel対応列レター
+        /// </summary>
+        public string ColumnLetter { get; }
+
+        public ExcelColumnLetterAttribute(string columnLetter)
+        {
+            ColumnLetter = columnLetter;
+        }
+    }
+}