diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1c1335a..771f1b4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ### Added
  - Added ToCollection extension method for copying an enumerable to a new collection
  - TableBuilder supports multi-line content
+ - Added eIcdFileMode for IO platform agnosticism
 
 ## [11.0.0] - 2020-03-20
 ### Added
diff --git a/ICD.Common.Utils/ICD.Common.Utils_SimplSharp.csproj b/ICD.Common.Utils/ICD.Common.Utils_SimplSharp.csproj
index 7000084..baad99f 100644
--- a/ICD.Common.Utils/ICD.Common.Utils_SimplSharp.csproj
+++ b/ICD.Common.Utils/ICD.Common.Utils_SimplSharp.csproj
@@ -126,6 +126,7 @@
     <Compile Include="GuidUtils.cs" />
     <Compile Include="IcdUriBuilder.cs" />
     <Compile Include="IO\Compression\IcdZipEntry.cs" />
+    <Compile Include="IO\eIcdFileMode.cs" />
     <Compile Include="IO\IcdBinaryReader.cs" />
     <Compile Include="IO\eSeekOrigin.cs" />
     <Compile Include="IO\IcdStreamWriter.cs" />
diff --git a/ICD.Common.Utils/IO/IcdFile.cs b/ICD.Common.Utils/IO/IcdFile.cs
index eff436f..15753eb 100644
--- a/ICD.Common.Utils/IO/IcdFile.cs
+++ b/ICD.Common.Utils/IO/IcdFile.cs
@@ -78,9 +78,9 @@ namespace ICD.Common.Utils.IO
 		}
 
 		[PublicAPI]
-		public static IcdFileStream Open(string path, FileMode mode)
+		public static IcdFileStream Open(string path, eIcdFileMode mode)
 		{
-			return new IcdFileStream(File.Open(path, mode));
+			return new IcdFileStream(File.Open(path, mode.ToFileMode()));
 		}
 
 		[PublicAPI]
diff --git a/ICD.Common.Utils/IO/eIcdFileMode.cs b/ICD.Common.Utils/IO/eIcdFileMode.cs
new file mode 100644
index 0000000..dcb0f95
--- /dev/null
+++ b/ICD.Common.Utils/IO/eIcdFileMode.cs
@@ -0,0 +1,46 @@
+using System;
+#if SIMPLSHARP
+using Crestron.SimplSharp.CrestronIO;
+#else
+using System.IO;
+#endif
+
+namespace ICD.Common.Utils.IO
+{
+	/// <summary>
+	/// Specifies how the operating system should open a file.
+	/// </summary>
+	public enum eIcdFileMode
+	{
+		CreateNew = 1,
+		Create = 2,
+		Open = 3,
+		OpenOrCreate = 4,
+		Truncate = 5,
+		Append = 6,
+	}
+
+	public static class IcdFileModeExtensions
+	{
+		public static FileMode ToFileMode(this eIcdFileMode extends)
+		{
+			switch (extends)
+			{
+				case eIcdFileMode.CreateNew:
+					return FileMode.CreateNew;
+				case eIcdFileMode.Create:
+					return FileMode.Create;
+				case eIcdFileMode.Open:
+					return FileMode.Open;
+				case eIcdFileMode.OpenOrCreate:
+					return FileMode.OpenOrCreate;
+				case eIcdFileMode.Truncate:
+					return FileMode.Truncate;
+				case eIcdFileMode.Append:
+					return FileMode.Append;
+				default:
+					throw new ArgumentOutOfRangeException("extends");
+			}
+		}
+	}
+}