diff --git a/FAQ/Multithreading/.NET/Multithreading/Multithreading.sln b/FAQ/Multithreading/.NET/Multithreading/Multithreading.sln
new file mode 100644
index 00000000..b0303033
--- /dev/null
+++ b/FAQ/Multithreading/.NET/Multithreading/Multithreading.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.9.34310.174
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Multithreading", "Multithreading\Multithreading.csproj", "{FF011E2F-22A0-4FE9-927E-E19D6943A39F}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{FF011E2F-22A0-4FE9-927E-E19D6943A39F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{FF011E2F-22A0-4FE9-927E-E19D6943A39F}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{FF011E2F-22A0-4FE9-927E-E19D6943A39F}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{FF011E2F-22A0-4FE9-927E-E19D6943A39F}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {3FF7195C-8AA0-4979-9884-45A22FE9BCE4}
+	EndGlobalSection
+EndGlobal
diff --git a/FAQ/Multithreading/.NET/Multithreading/Multithreading/Data/InputTemplate.xlsx b/FAQ/Multithreading/.NET/Multithreading/Multithreading/Data/InputTemplate.xlsx
new file mode 100644
index 00000000..39d8d2cc
Binary files /dev/null and b/FAQ/Multithreading/.NET/Multithreading/Multithreading/Data/InputTemplate.xlsx differ
diff --git a/FAQ/Multithreading/.NET/Multithreading/Multithreading/Multithreading.csproj b/FAQ/Multithreading/.NET/Multithreading/Multithreading/Multithreading.csproj
new file mode 100644
index 00000000..fe74e2d4
--- /dev/null
+++ b/FAQ/Multithreading/.NET/Multithreading/Multithreading/Multithreading.csproj
@@ -0,0 +1,20 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Syncfusion.XlsIORenderer.Net.Core" Version="27.1.53" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Update="Data\*">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+  
+</Project>
diff --git a/FAQ/Multithreading/.NET/Multithreading/Multithreading/Output/.gitkeep b/FAQ/Multithreading/.NET/Multithreading/Multithreading/Output/.gitkeep
new file mode 100644
index 00000000..e69de29b
diff --git a/FAQ/Multithreading/.NET/Multithreading/Multithreading/Program.cs b/FAQ/Multithreading/.NET/Multithreading/Multithreading/Program.cs
new file mode 100644
index 00000000..e202b178
--- /dev/null
+++ b/FAQ/Multithreading/.NET/Multithreading/Multithreading/Program.cs
@@ -0,0 +1,58 @@
+using Syncfusion.XlsIO;
+using Syncfusion.XlsIORenderer;
+using Syncfusion.Pdf;
+
+namespace Multithreading
+{
+    class MultiThreading
+    {
+        //Defines the number of threads to be created
+        private const int ThreadCount = 1000;
+        public static void Main()
+        {
+            //Create an array of threads based on the ThreadCount
+            Thread[] threads = new Thread[ThreadCount];
+            for (int i = 0; i < ThreadCount; i++)
+            {
+                threads[i] = new Thread(ReadEditConvertExcel);
+                threads[i].Start();
+            }
+
+            //Ensure all threads complete by calling Join on each thread
+            for (int i = 0; i < ThreadCount; i++)
+            {
+                threads[i].Join();
+            }
+        }
+
+        //Method to convert Excel to PDF
+        static void ReadEditConvertExcel()
+        {
+            using (ExcelEngine excelEngine = new ExcelEngine())
+            {
+                IApplication application = excelEngine.Excel;
+                application.DefaultVersion = ExcelVersion.Excel2016;
+                FileStream inputStream = new FileStream(Path.GetFullPath(@"Data/InputTemplate.xlsx"), FileMode.Open, FileAccess.Read);
+                IWorkbook workbook = application.Workbooks.Open(inputStream);
+                inputStream.Close();
+                IWorksheet sheet = workbook.Worksheets[0];
+
+                //Add text, formula, and number in the worksheet
+                sheet.Range["A1"].Text = "Hello World" + DateTime.Now;
+                Console.WriteLine(sheet.Range["A1"].Text);
+                sheet.Range["A2"].Formula = "=Now()";
+                sheet.Range["A3"].Number = 12345;
+
+                //Convert the Excel workbook to PDF
+                XlsIORenderer xlsIORenderer = new XlsIORenderer();
+                PdfDocument pdfDocument = xlsIORenderer.ConvertToPDF(workbook);
+
+                //Save the PDF document
+                MemoryStream fileStream = new MemoryStream();
+                pdfDocument.Save(fileStream);
+                fileStream.Close();
+                pdfDocument.Dispose();
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/FAQ/Multithreading/.NET/Multithreading/README.md b/FAQ/Multithreading/.NET/Multithreading/README.md
new file mode 100644
index 00000000..eb8b3bcc
--- /dev/null
+++ b/FAQ/Multithreading/.NET/Multithreading/README.md
@@ -0,0 +1 @@
+# Does XlsIO library support multithreading and thread-safe?