File list (Check if you may need any files):
ExcelWorkbook1
..............\ExcelWorkbook1
..............\..............\app.config
..............\..............\bin
..............\..............\...\Debug
..............\..............\...\.....\ExcelWorkbook1.dll
..............\..............\...\.....\ExcelWorkbook1.dll.config
..............\..............\...\.....\ExcelWorkbook1.pdb
..............\..............\...\.....\ExcelWorkbook1.xls
..............\..............\...\.....\ExcelWorkbook2.dll
..............\..............\...\Release
..............\..............\...\.......\ExcelWorkbook1.dll
..............\..............\...\.......\ExcelWorkbook1.pdb
..............\..............\...\.......\ExcelWorkbook1.xls
..............\..............\ExcelWorkbook1.csproj
..............\..............\ExcelWorkbook1.xls
..............\..............\Form1.cs
..............\..............\Form1.Designer.cs
..............\..............\Form1.resx
..............\..............\HelloControl.cs
..............\..............\HelloControl.Designer.cs
..............\..............\HelloControl.resx
..............\..............\NorthwindDataSet.Designer.cs
..............\..............\NorthwindDataSet.xsc
..............\..............\NorthwindDataSet.xsd
..............\..............\NorthwindDataSet.xss
..............\..............\obj
..............\..............\...\Debug
..............\..............\...\.....\ExcelWorkbook1.csproj.GenerateResource.Cache
..............\..............\...\.....\ExcelWorkbook1.csproj.ResolveComReference.cache
..............\..............\...\.....\ExcelWorkbook1.dll
..............\..............\...\.....\ExcelWorkbook1.Form1.resources
..............\..............\...\.....\ExcelWorkbook1.HelloControl.resources
..............\..............\...\.....\ExcelWorkbook1.pdb
..............\..............\...\.....\ExcelWorkbook1.Properties.Resources.resources
..............\..............\...\.....\ExcelWorkbook1.Sheet1.resources
..............\..............\...\.....\ResolveAssemblyReference.cache
..............\..............\...\.....\TempPE
..............\..............\...\.....\......\NorthwindDataSet.Designer.cs.dll
..............\..............\...\ExcelWorkbook1.csproj.FileList.txt
..............\..............\...\Release
..............\..............\...\.......\ExcelWorkbook1.csproj.GenerateResource.Cache
..............\..............\...\.......\ExcelWorkbook1.csproj.ResolveComReference.cache
..............\..............\...\.......\ExcelWorkbook1.dll
..............\..............\...\.......\ExcelWorkbook1.Form1.resources
..............\..............\...\.......\ExcelWorkbook1.pdb
..............\..............\...\.......\ExcelWorkbook1.Properties.Resources.resources
..............\..............\...\.......\ExcelWorkbook1.Sheet1.resources
..............\..............\...\.......\ResolveAssemblyReference.cache
..............\..............\...\.......\TempPE
..............\..............\Properties
..............\..............\..........\AssemblyInfo.cs
..............\..............\..........\Resources.Designer.cs
..............\..............\..........\Resources.resx
..............\..............\..........\Settings.Designer.cs
..............\..............\..........\Settings.settings
..............\..............\Sheet1.cs
..............\..............\Sheet1.Designer.cs
..............\..............\Sheet1.Designer.xml
..............\..............\Sheet1.resx
..............\..............\Sheet2.cs
..............\..............\Sheet2.Designer.cs
..............\..............\Sheet2.Designer.xml
..............\..............\Sheet3.cs
..............\..............\Sheet3.Designer.cs
..............\..............\Sheet3.Designer.xml
..............\..............\ThisWorkbook.cs
..............\..............\ThisWorkbook.Designer.cs
..............\..............\ThisWorkbook.Designer.xml
..............\ExcelWorkbook1.sln