diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index 23c5b5e98b..be3ef4f243 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -39,7 +39,8 @@
 		"ms-vscode.powershell",
 		"rebornix.ruby",
 		"visualstudioexptteam.vscodeintellicode",
-        "streetsidesoftware.code-spell-checker"
+        "streetsidesoftware.code-spell-checker",
+        "sswg.swift-lang"
 	],
 	"remoteUser": "vscode",
 	"features": {
@@ -50,8 +51,9 @@
 		"java": "latest",
 		"ruby": "latest",
 		"rust": "latest",
-		"powershell": "latest"
+		"powershell": "latest",
+        "swift": "latest"
 	},
     "postCreateCommand":
-        "git config pull.rebase false && git config push.default simple && git config remote.origin.prune true && git config commit.gpgsign true && git config tag.gpgsign true && git config core.safecrlf false && gh repo clone microsoft/kiota-samples samples"
+        "git config pull.rebase false && git config push.default simple && git config remote.origin.prune true && git config commit.gpgsign true && git config tag.gpgsign true && git config core.safecrlf false && [ ! -d ./samples ] && gh repo clone microsoft/kiota-samples samples"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1e7bc60a0a..13419ac3ad 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 
 - Added support for enum options descriptions (C#/Go/Java/TypeScript). [#90](https://github.com/microsoft/kiota/issues/90)
+- Added support for file parameters types. [#221](https://github.com/microsoft/kiota/issues/221)
 
 ### Changed
 
diff --git a/src/Kiota.Builder/KiotaBuilder.cs b/src/Kiota.Builder/KiotaBuilder.cs
index 55b54f0bb8..1f0340a2b2 100644
--- a/src/Kiota.Builder/KiotaBuilder.cs
+++ b/src/Kiota.Builder/KiotaBuilder.cs
@@ -591,6 +591,7 @@ private static CodeType GetPrimitiveType(OpenApiSchema typeSchema, string childT
             var format = typeSchema?.Format ?? typeSchema?.Items?.Format;
             var primitiveTypeName = (typeName?.ToLowerInvariant(), format?.ToLowerInvariant()) switch {
                 ("string", "base64url") => "binary",
+                ("file", _) => "binary",
                 ("string", "duration") => "TimeSpan",
                 ("string", "time") => "TimeOnly",
                 ("string", "date") => "DateOnly",
diff --git a/src/Kiota.Builder/Refiners/CSharpReservedTypesProvider.cs b/src/Kiota.Builder/Refiners/CSharpReservedTypesProvider.cs
index d2e0dee868..8f8c5f59ea 100644
--- a/src/Kiota.Builder/Refiners/CSharpReservedTypesProvider.cs
+++ b/src/Kiota.Builder/Refiners/CSharpReservedTypesProvider.cs
@@ -6,6 +6,9 @@ public class CSharpReservedTypesProvider : IReservedNamesProvider
     {
         private readonly Lazy<HashSet<string>> _reservedNames = new(() => new(StringComparer.OrdinalIgnoreCase)
         {
+            "file", //system.io static types
+            "directory",
+            "path",
             "task",
         });
         public HashSet<string> ReservedNames => _reservedNames.Value;
diff --git a/tests/Kiota.Builder.Tests/KiotaBuilderTests.cs b/tests/Kiota.Builder.Tests/KiotaBuilderTests.cs
index b4cf2b2524..e38284df5e 100644
--- a/tests/Kiota.Builder.Tests/KiotaBuilderTests.cs
+++ b/tests/Kiota.Builder.Tests/KiotaBuilderTests.cs
@@ -1568,6 +1568,7 @@ public void InheritedTypeWithInlineSchemaWorks() {
     [InlineData("boolean", "", "boolean")]
     [InlineData("", "byte", "binary")]
     [InlineData("", "binary", "binary")]
+    [InlineData("file", null, "binary")]
     [Theory]
     public void MapsPrimitiveFormats(string type, string format, string expected){
         var document = new OpenApiDocument() {