Sub Macro()
Dim fso As Object
Set fso = CreateObject("Scripting.FileSystemObject")
Dim FolderPath As String
'ここのアドレスをファイルが格納されているフォルダのパスに変えてください
FolderPath = "E:\tacci\Desktop\results"
Dim myFile As Object
Dim i As Long
i = 1
For Each myFile In fso.GetFolder(FolderPath).Files
Cells(i, 1).Value = fso.OpenTextFile(myFile.Path).ReadAll()
i = i + 1
Next
End Sub