diff --git a/SpineViewer/Spine/Implementations/Spine/Spine21.cs b/SpineViewer/Spine/Implementations/Spine/Spine21.cs
index 49f127a..1162317 100644
--- a/SpineViewer/Spine/Implementations/Spine/Spine21.cs
+++ b/SpineViewer/Spine/Implementations/Spine/Spine21.cs
@@ -71,7 +71,7 @@ namespace SpineViewer.Spine.Implementations.Spine
                 catch
                 {
                     // 都不行就报错
-                    throw new ArgumentException($"Unknown skeleton file format {SkelPath}");
+                    throw new InvalidDataException($"Unknown skeleton file format {SkelPath}");
                 }
             }
 
diff --git a/SpineViewer/Spine/Implementations/Spine/Spine36.cs b/SpineViewer/Spine/Implementations/Spine/Spine36.cs
index 1163300..11a0ce6 100644
--- a/SpineViewer/Spine/Implementations/Spine/Spine36.cs
+++ b/SpineViewer/Spine/Implementations/Spine/Spine36.cs
@@ -70,7 +70,7 @@ namespace SpineViewer.Spine.Implementations.Spine
                 catch
                 {
                     // 都不行就报错
-                    throw new ArgumentException($"Unknown skeleton file format {SkelPath}");
+                    throw new InvalidDataException($"Unknown skeleton file format {SkelPath}");
                 }
             }
 
diff --git a/SpineViewer/Spine/Implementations/Spine/Spine37.cs b/SpineViewer/Spine/Implementations/Spine/Spine37.cs
index db74c92..521c815 100644
--- a/SpineViewer/Spine/Implementations/Spine/Spine37.cs
+++ b/SpineViewer/Spine/Implementations/Spine/Spine37.cs
@@ -68,7 +68,7 @@ namespace SpineViewer.Spine.Implementations.Spine
                 catch
                 {
                     // 都不行就报错
-                    throw new ArgumentException($"Unknown skeleton file format {SkelPath}");
+                    throw new InvalidDataException($"Unknown skeleton file format {SkelPath}");
                 }
             }
 
diff --git a/SpineViewer/Spine/Implementations/Spine/Spine38.cs b/SpineViewer/Spine/Implementations/Spine/Spine38.cs
index 0feaea1..8cfc2de 100644
--- a/SpineViewer/Spine/Implementations/Spine/Spine38.cs
+++ b/SpineViewer/Spine/Implementations/Spine/Spine38.cs
@@ -71,7 +71,7 @@ namespace SpineViewer.Spine.Implementations.Spine
                 catch
                 {
                     // 都不行就报错
-                    throw new ArgumentException($"Unknown skeleton file format {SkelPath}");
+                    throw new InvalidDataException($"Unknown skeleton file format {SkelPath}");
                 }
             }
 
diff --git a/SpineViewer/Spine/Implementations/Spine/Spine40.cs b/SpineViewer/Spine/Implementations/Spine/Spine40.cs
index 016e324..bbe847b 100644
--- a/SpineViewer/Spine/Implementations/Spine/Spine40.cs
+++ b/SpineViewer/Spine/Implementations/Spine/Spine40.cs
@@ -70,7 +70,7 @@ namespace SpineViewer.Spine.Implementations.Spine
                 catch
                 {
                     // 都不行就报错
-                    throw new ArgumentException($"Unknown skeleton file format {SkelPath}");
+                    throw new InvalidDataException($"Unknown skeleton file format {SkelPath}");
                 }
             }
 
diff --git a/SpineViewer/Spine/Implementations/Spine/Spine41.cs b/SpineViewer/Spine/Implementations/Spine/Spine41.cs
index b6ba485..45324a9 100644
--- a/SpineViewer/Spine/Implementations/Spine/Spine41.cs
+++ b/SpineViewer/Spine/Implementations/Spine/Spine41.cs
@@ -70,7 +70,7 @@ namespace SpineViewer.Spine.Implementations.Spine
                 catch
                 {
                     // 都不行就报错
-                    throw new ArgumentException($"Unknown skeleton file format {SkelPath}");
+                    throw new InvalidDataException($"Unknown skeleton file format {SkelPath}");
                 }
             }
 
diff --git a/SpineViewer/Spine/Implementations/Spine/Spine42.cs b/SpineViewer/Spine/Implementations/Spine/Spine42.cs
index babf205..3dfd280 100644
--- a/SpineViewer/Spine/Implementations/Spine/Spine42.cs
+++ b/SpineViewer/Spine/Implementations/Spine/Spine42.cs
@@ -70,7 +70,7 @@ namespace SpineViewer.Spine.Implementations.Spine
                 catch
                 {
                     // 都不行就报错
-                    throw new ArgumentException($"Unknown skeleton file format {SkelPath}");
+                    throw new InvalidDataException($"Unknown skeleton file format {SkelPath}");
                 }
             }
 
diff --git a/SpineViewer/Spine/SkeletonConverter.cs b/SpineViewer/Spine/SkeletonConverter.cs
index b5f39cd..7f1aede 100644
--- a/SpineViewer/Spine/SkeletonConverter.cs
+++ b/SpineViewer/Spine/SkeletonConverter.cs
@@ -98,7 +98,7 @@ namespace SpineViewer.Spine
             if (JsonNode.Parse(input) is JsonObject root)
                 return root;
             else
-                throw new InvalidOperationException($"{jsonPath} is not a valid json object");
+                throw new InvalidDataException($"{jsonPath} is not a valid json object");
         }
 
         /// <summary>
@@ -116,14 +116,17 @@ namespace SpineViewer.Spine
         /// </summary>
         public abstract JsonObject ToVersion(JsonObject root, Version version);
 
-        protected class SkeletonReader
+        /// <summary>
+        /// 二进制骨骼文件读
+        /// </summary>
+        public class BinaryReader
         {
             protected byte[] buffer = new byte[32];
             protected byte[] bytesBigEndian = new byte[8];
             public readonly List<string> StringTable = new(32);
             protected Stream input;
 
-            public SkeletonReader(Stream input) { this.input = input; }
+            public BinaryReader(Stream input) { this.input = input; }
             public int Read()
             {
                 int val = input.ReadByte();
@@ -219,14 +222,17 @@ namespace SpineViewer.Spine
             }
         }
 
-        protected class SkeletonWriter
+        /// <summary>
+        /// 二进制骨骼文件写
+        /// </summary>
+        protected class BinaryWriter
         {
             protected byte[] buffer = new byte[32];
             protected byte[] bytesBigEndian = new byte[8];
             public readonly List<string> StringTable = new(32);
             protected Stream output;
 
-            public SkeletonWriter(Stream output) { this.output = output; }
+            public BinaryWriter(Stream output) { this.output = output; }
             public void Write(int val) => output.WriteByte((byte)val);
             public void WriteByte(byte val) => output.WriteByte(val);
             public void WriteUByte(byte val) => output.WriteByte(val);