Hi @tonythm you can find a lot of literature, in this forum too, but just for you info as guide here below a simple code.
The code is starting from an Excel empty sheet already opened. If you wand to open you should app:
On Error Resume Next
Set objExcel = GetObject(, "Excel.Application") 'already indicate below
If Err.Number > 0 Then
Set objExcel = CreateObject("Excel.Application") ' start a new excel session.
End If
Set ExcelFileOpened = GetObject(, "Excel.Application") ' create the Excel Object
Set wrks = ExcelFileOpened.ActiveSheet ' point to active sheet
'fix a reference for column and row for next use.
ExRow = 1
ExCol = 1
'WRITE COLUMN HEADING
wrks.Cells(ExRow , ExCol) = "COLUMN HEADING"
wrks.Cells(ExRow , ExCol + 1) = "COLUMN HEADING 2"
wrks.Cells(ExRow , ExCol + 2) = "COLUMN HEADING 3"
' SEARCH BLOCK ON DRAWING.
For Each ENTITY In ThisDrawing.ModelSpace ' For eache entity inside modele space
If ENTITY.ObjectName = "AcDbBlockReference" Then '
If ENTITY.EffectiveName = "Block name 1" Or ENTITY.EffectiveName = "block name 2" Then ' check block name inside the dwg
If ENTITY.HasAttributes = True Then ' Se il blocco ha attributi
ATTRIB_LIST = ENTITY.GetAttributes ' GET THE ARRAY "ATTRIB_LIST"
INS_POINT = ENTITY.InsertionPoint ' BLOCK INSERTION POINT
wrks.Cells(ExRow + 2, ExCol) = ENTITY.name ' BLOCK NAME
wrks.Cells(ExRow + 2, ExCol + 1) = ENTITY.Layer ' BLOCK LAYER
wrks.Cells(ExRow + 2, ExCol + 2) = ENTITY.EffectiveName ' BLOCK EFFECTIVE NAME
wrks.Cells(ExRow + 2, ExCol + 3) = INS_POINT(0) ' BLOCK INSERTION POINT X
wrks.Cells(ExRow + 2, ExCol + 4) = INS_POINT(1) ' BLOCK INSERTION POINT Y
wrks.Cells(ExRow + 2, ExCol + 5) = INS_POINT(2) ' BLOCK INSERTION POINT Z
wrks.Cells(ExRow + 2, ExCol + 6) = ATTRIB_LIST(0).TextString ' WRITE ON EXCEL ATTRIBUTE VALUE N.1
wrks.Cells(ExRow + 2, ExCol + 7) = ATTRIB_LIST(1).TextString ' WRITE ON EXCEL ATTRIBUTE VALUE N.2
wrks.Cells(ExRow + 2, ExCol + 8 = ATTRIB_LIST(2).TextString ' WRITE ON EXCEL ATTRIBUTE VALUE N.3
wrks.Cells(ExRow + 2, ExCol + 9) = ATTRIB_LIST(3).TextString ' WRITE ON EXCEL ATTRIBUTE VALUE N.4
ExRow = ExRow + 1
i = i + 1
End If
End If
End If
End If
Next
please note that above code it's a simple guide line, for example if the two different blocks you mentioned has different amount of attribute, the code shall be fixed as you need.
How ever that should be a good starting point.