1、把需要合并的excel表格文档放到同一个文件夹里
2、新建一个“数据合并.xlsx“文档
3、打开“数据合并.xlsx“文档，在”Sheet1“工作表的地方右键→查看代码（快捷键：“Alt+F11”，尽量选用快)进入到microsoft Visual Basic for Applications窗口
4、双击工程资源管理器里面的sheet1，在右侧的代码区粘贴如下代码：

Sub 合并当前目录下所有工作簿的全部工作表() 

Dim MyPath, MyName, AWbName 

Dim Wb As Workbook, WbN As String 

Dim G As Long 

Dim Num As Long 

Dim BOX As String 

Application.ScreenUpdating = False 

MyPath = ActiveWorkbook.Path 

MyName = Dir(MyPath & "\" & "*.csv") 

AWbName = ActiveWorkbook.Name 

Num = 0 

Do While MyName <> "" 

If MyName <> AWbName Then 

Set Wb = Workbooks.Open(MyPath & "\" & MyName) 

Num = Num + 1 
IF Num=1  Then
With Workbooks(1).ActiveSheet 


For G = 1 To Sheets.Count 

Wb.Sheets(G).UsedRange.Copy .Cells(.Range("A65536").End(xlUp).Row  , 1) 

Next 

WbN = WbN & Chr(13) & Wb.Name 

Wb.Close False 

End With 

Else
With Workbooks(1).ActiveSheet 


For G = 1 To Sheets.Count 

Wb.Sheets(G).UsedRange.Copy .Cells(.Range("A2").End(xlDown).Row +1   , 1) 

Next 

WbN = WbN & Chr(13) & Wb.Name 

Wb.Close False 

End With 
End if

End If 

MyName = Dir 

Loop 

Range("A1").Select 

Application.ScreenUpdating = True 

MsgBox "共合并了" & Num & "个工作薄下的全部工作表。如下：" & Chr(13) & WbN,vbInformation, "提示" 

End Sub 

5、运行→运行子过程/用户窗体（或者直接点击运行按钮，快捷键：F5），即可合并所有Excel表格到”数据合并.xlsx“文档的Sheet1工作表里面
注意：如果合并出现问题可能是因为代码部分excel文件后缀不同导致，修改代码MyName部分即可。