File list (Check if you may need any files):
MergeExcelHelper
................\bin
................\...\Debug
................\...\.....\MergeExcelHelper.exe
................\...\.....\MergeExcelHelper.pdb
................\...\.....\MergeExcelHelper.vshost.exe
................\...\.....\MergeExcelHelper.xml
................\Form1.Designer.vb
................\Form1.resx
................\Form1.vb
................\MergeExcelHelper.sln
................\MergeExcelHelper.vbproj
................\MergeExcelHelper.vbproj.user
................\My Project
................\..........\Application.Designer.vb
................\..........\Application.myapp
................\..........\AssemblyInfo.vb
................\..........\Resources.Designer.vb
................\..........\Resources.resx
................\..........\Settings.Designer.vb
................\..........\Settings.settings
................\obj
................\...\Debug
................\...\.....\MergeExcelHelper.exe
................\...\.....\MergeExcelHelper.Form1.resources
................\...\.....\MergeExcelHelper.pdb
................\...\.....\MergeExcelHelper.Resources.resources
................\...\.....\MergeExcelHelper.vbproj.GenerateResource.Cache
................\...\.....\MergeExcelHelper.vbproj.ResolveComReference.cache
................\...\.....\MergeExcelHelper.xml
................\...\.....\TempPE
................\...\MergeExcelHelper.vbproj.FileList.txt
................\TestData
................\........\S1.xls
................\........\S2.xls
................\........\S3.xls
................\........\复件 S2.xls