diff --git a/ExcelLoader.cs b/ExcelLoader.cs
index 9ee4248..eff8121 100644
--- a/ExcelLoader.cs
+++ b/ExcelLoader.cs
@@ -13,7 +13,7 @@ class ExcelLoader {
         // TODO: add Sheet Struct Define
 
         public ExcelLoader(string filePath, int headerRow) {
-            using (var stream = File.Open(filePath, FileMode.Open, FileAccess.Read)) {
+            using (var stream = File.Open(filePath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)) {
                 // Auto-detect format, supports:
                 //  - Binary Excel files (2.0-2003 format; *.xls)
                 //  - OpenXml Excel files (2007 format; *.xlsx)
diff --git a/Properties/AssemblyInfo.cs b/Properties/AssemblyInfo.cs
index 51dfab5..a585fed 100644
--- a/Properties/AssemblyInfo.cs
+++ b/Properties/AssemblyInfo.cs
@@ -32,5 +32,5 @@
 // 可以指定所有这些值，也可以使用“生成号”和“修订号”的默认值，
 // 方法是按如下所示使用“*”:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.4.0.0")]
-[assembly: AssemblyFileVersion("1.4.0.0")]
+[assembly: AssemblyVersion("1.4.2.0")]
+[assembly: AssemblyFileVersion("1.4.2.0")]