Added sample

Author: GOPINATH-SF4767

Presentation-to-Markdown-conversion/Convert-Presentation-to-Markdown/.NET/Convert-Presentation-to-Markdown.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.37301.10 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Convert-Presentation-to-Markdown", "Convert-Presentation-to-Markdown\Convert-Presentation-to-Markdown.csproj", "{C280950F-91E6-9CA4-EA42-80D2A16BE880}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{C280950F-91E6-9CA4-EA42-80D2A16BE880}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{C280950F-91E6-9CA4-EA42-80D2A16BE880}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{C280950F-91E6-9CA4-EA42-80D2A16BE880}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{C280950F-91E6-9CA4-EA42-80D2A16BE880}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {3DFDC2F4-0C28-49EA-869A-9C6A6BB898D1}
+	EndGlobalSection
+EndGlobal

Presentation-to-Markdown-conversion/Convert-Presentation-to-Markdown/.NET/Convert-Presentation-to-Markdown/Convert-Presentation-to-Markdown.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+
+  <ItemGroup>
+    <PackageReference Include="Syncfusion.Presentation.Net.Core" Version="*" />
+  </ItemGroup>
+	<ItemGroup>
+		<None Update="Data\Input.pptx">
+			<CopyToOutputDirectory>Always</CopyToOutputDirectory>
+		</None>
+		<None Update="Output\.gitkeep">
+			<CopyToOutputDirectory>Always</CopyToOutputDirectory>
+		</None>
+	</ItemGroup>
+  
+</Project>

Presentation-to-Markdown-conversion/Convert-Presentation-to-Markdown/.NET/Convert-Presentation-to-Markdown/Data/Input.pptx

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+

Presentation-to-Markdown-conversion/Convert-Presentation-to-Markdown/.NET/Convert-Presentation-to-Markdown/Output/gitkeep.txt

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+using Syncfusion.Presentation;
+
+namespace Convert_Presentation_to_Markdown
+{
+    class Program
+    {
+
+        static void Main(string[] args)
+        {
+            //Open the file as a Stream.
+            using (FileStream fileStream = new FileStream(Path.GetFullPath(@"Data/Input.pptx"), FileMode.Open, FileAccess.Read))
+            {
+                //Load the file stream
+                using (IPresentation presentation = Presentation.Open(fileStream))
+                {
+                    //Save as a PPTX document into the Markdown FileStream.
+                    using (FileStream outputStream = new FileStream(Path.GetFullPath(@"Output/MarkdownToPPTX.md"), FileMode.Create))
+                    {
+                        presentation.Save(outputStream);
+                    }
+                }
+            }
+        }
+    }
+}