To find and install the DS.Documents.Excel NuGet package

1. In Solution Explorer, right-click either Dependencies or a project and select Manage NuGet Packages.
2. In the Browse tab, select nuget.org from the Package source dropdown.
3. In the Browse tab, type "ds.documents" or "DS.Documents" in the search text box at the top and find the package "DS.Documents.Excel".
   
4. Click Install to install the DS.Documents.Excel package and its dependencies into the project. When the installation is complete, make sure you check the NuGet folder in your solution explorer and confirm whether or not the DS.Documents.Excel package is added to your project dependencies.
   

To manually create NuGet package source

In order to manually create Nuget feed source, you need to complete the following steps to add the Nuget feed URL to your Nuget settings in Visual Studio. Before you proceed with this step, make sure you first download DsExcel from the website and put the DS.Documents.Excel nuget package in a local folder, for example - "D:\Nupkg".

1. From the Tools menu, select Nuget Package Manager | Package Manager Settings. The Options dialog box appears.
2. In the left pane, select Package Sources.
3. Click the button in the top right corner. A new source is added under Available Package Sources.
4. Set a Name for the new package source.
5. To add source in the Source field, click the ellipsis button next to the Source field to browse for the Nupkg folder.
6. After you select the Nupkg folder, click the Update button and finally click OK.

To install the DS.Documents.Excel package using command line interface

1. Open the CommandPrompt window on your Windows system.
2. Create a console application 'myApp' by using the command: dotnet new console -o myApp
3. Use the cd command to navigate to your project folder: cd myApp
4. Install DsExcel .NET NuGet package using the following command:
   dotnet add package DS.Documents.Excel

To add DS.Documents.Excel package reference

DsExcel .NET is a cross-platform spreadsheet component that can be used on multiple platforms including Windows, Linux and Mac operating system.

In case you are creating an application using the Visual Studio, user can edit the **.csproj file and a package reference as shown in the image below:

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net6.0</TargetFramework>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="DS.Documents.Excel" Version="7.0.0" />
  </ItemGroup>
</Project>

After this step, follow the steps in the Quick Start section.

1. Open Visual Studio for MAC.
2. Create any application (any target that supports .NET Standard 2.0).
3. In tree view on the left, right-click Dependencies and choose Add Packages.
4. In the Search panel, type "DS.Documents".
5. From the list of packages displayed in the left panel, select DS.Documents.Excel and click Add Packages.
6. Click Accept.
   

This automatically adds references of the package and its dependencies to your application. After this step, follow the steps in the Quick Start section.

1. Open Visual Studio Code.
2. Install Nuget Package Manager from Extensions.
3. Create a folder "MyApp" in your Home folder.
4. In the Terminal in Visual Studio Code, type "cd MyApp"
5. Type command "dotnet new console"
   Observe: This creates a .NETCore application with MyApp.csproj file and Program.cs.
6. Press Ctrl+P. A command line opens at the top.
7. Type command: ""
   Observe: "Nuget Package Manager: Add Package" option appears.
8. Click the above option.
9. Type "Ds" and press Enter.
   Observe: Document Solutions packages get displayed in the dropdown.
10. Choose DS.Documents.Excel.
11. Type following command in the Terminal window: "dotnet restore"

This adds references of the package to your application. After this step, follow the steps in the Quick Start section.