941694-UG documentation for TimePeriod in Conditional Formatting

FAQ/Conditional Formatting/.NET/Time period/README.md

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+# How to apply TimePeriod conditional formatting in Excel using C#?
+
+Step 1: Create a New C# Console Application Project.
+
+Step 2: Name the Project.
+
+Step 3: Install the [Syncfusion.XlsIO.Net.Core](https://www.nuget.org/packages/Syncfusion.XlsIO.Net.Core) NuGet package as reference to your .NET Standard applications from [NuGet.org](https://www.nuget.org).
+
+Step 4: Include the following namespaces in the **Program.cs** file.
+
+```csharp
+using System;
+using System.IO;
+using Syncfusion.XlsIO;
+```
+
+Step 5: Include the below code snippet in **Program.cs** to apply TimePeriod conditional formatting in Excel.
+```csharp
+ using (ExcelEngine excelEngine = new ExcelEngine())
+ {
+    IApplication application = excelEngine.Excel;
+    application.DefaultVersion = ExcelVersion.Xlsx;
+    FileStream inputStream = new FileStream(Path.GetFullPath(@"Data/Input.xlsx"), FileMode.Open, FileAccess.Read);
+    IWorkbook workbook = application.Workbooks.Open(inputStream);
+    IWorksheet worksheet = workbook.Worksheets[0];
+
+    //Apply conditional format for specific time period
+    IConditionalFormats conditionalFormats = worksheet.UsedRange.ConditionalFormats;
+    IConditionalFormat conditionalFormat = conditionalFormats.AddCondition();
+
+    //Set the format type to 'TimePeriod' to apply time-based conditional formatting
+    conditionalFormat.FormatType = ExcelCFType.TimePeriod;
+    conditionalFormat.TimePeriodType = CFTimePeriods.Today;
+
+    //Set the background color of the matching cells 
+    conditionalFormat.BackColor = ExcelKnownColors.Sky_blue;
+
+    //Saving the workbook
+    FileStream outputStream = new FileStream(Path.GetFullPath("Output/Output.xlsx"), FileMode.Create, FileAccess.Write);
+    workbook.SaveAs(outputStream);
+
+    //Dispose streams
+    outputStream.Dispose();
+    inputStream.Dispose();
+ }
+```
+

FAQ/Conditional Formatting/.NET/Time period/Time period.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.12.35506.116 d17.12
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Time period", "Time period\Time period.csproj", "{B24555D9-F405-47D8-938D-B0F494AA3DB7}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{B24555D9-F405-47D8-938D-B0F494AA3DB7}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{B24555D9-F405-47D8-938D-B0F494AA3DB7}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{B24555D9-F405-47D8-938D-B0F494AA3DB7}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{B24555D9-F405-47D8-938D-B0F494AA3DB7}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal

FAQ/Conditional Formatting/.NET/Time period/Time period/Program.cs

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+using System;
+using System.IO;
+using Syncfusion.XlsIO;
+
+namespace Time_Period
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            using (ExcelEngine excelEngine = new ExcelEngine())
+            {
+                IApplication application = excelEngine.Excel;
+                application.DefaultVersion = ExcelVersion.Xlsx;
+                FileStream inputStream = new FileStream(Path.GetFullPath(@"Data/Input.xlsx"), FileMode.Open, FileAccess.Read);
+                IWorkbook workbook = application.Workbooks.Open(inputStream);
+                IWorksheet worksheet = workbook.Worksheets[0];
+
+                //Apply conditional format for specific time period
+                IConditionalFormats conditionalFormats = worksheet.UsedRange.ConditionalFormats;
+                IConditionalFormat conditionalFormat = conditionalFormats.AddCondition();
+
+                //Set the format type to 'TimePeriod' to apply time-based conditional formatting
+                conditionalFormat.FormatType = ExcelCFType.TimePeriod;
+                conditionalFormat.TimePeriodType = CFTimePeriods.Today;
+
+                //Set the background color of the matching cells 
+                conditionalFormat.BackColor = ExcelKnownColors.Sky_blue;
+
+                //Saving the workbook
+                FileStream outputStream = new FileStream(Path.GetFullPath("Output/Output.xlsx"), FileMode.Create, FileAccess.Write);
+                workbook.SaveAs(outputStream);
+
+                //Dispose streams
+                outputStream.Dispose();
+                inputStream.Dispose();
+            }
+        }
+
+    }
+}

FAQ/Conditional Formatting/.NET/Time period/Time period/Time period.csproj

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