Microsoft Excel - Loop or Macro

I have 250 companies on an excel spreadsheet listed accross on a row. My companies are named Co A, Co B and so on. How do I insert two blank columns before each company. I think this can be done with a macro or a Loop. Below is how the companies are currently listed in each column and How I need them.


Current                              
Co A      Co B      Co C                  
                              
Need                              
Blank      Blank      Co A      Blank      Blank      Co B
ConernestoAsked:
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NorieConnect With a Mentor VBA ExpertCommented:
That code would replace the previous code.
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gnazarethCommented:
Try this

Sub InsertBlankColumns()
    Set cell = Cells(1, 1)
    
    While cell.Value <> ""
        cell.EntireColumn.Insert Shift:=xlRight
        cell.EntireColumn.Insert Shift:=xlRight
        Set cell = cell.Offset(0, 1)
    Wend
End Sub

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ConernestoAuthor Commented:
I have not done this before. How do I/where do I enter this?
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NorieVBA ExpertCommented:
Try this, change the start row and no of columns as required.
Option Explicit

Sub InsertColumns()
Dim rng As Range
Dim HeaderRow As Long
Dim NoColumns As Long

    HeaderRow = 1
    NoColumns = 3


    Set rng = Range("A" & HeaderRow)

    While rng.Value <> ""
        If rng.Value <> "" Then
            rng.Resize(, NoColumns).EntireColumn.Insert xlShiftToRight
        End If

        Set rng = rng.Offset(, 1)
    Wend
    
End Sub

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gnazarethCommented:
Make sure your spreadsheet is open
Press Alt + F11
Right click on "Microsoft Excel Objects" -> Insert -> Module
Paste in the code
Sub InsertBlankColumns()
    Set cell = Cells(1, 1)
    
    While cell.Value <> ""
        cell.EntireColumn.Insert Shift:=xlRight
        cell.EntireColumn.Insert Shift:=xlRight
        Set cell = cell.Offset(0, 1)
    Wend
End Sub

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Press F5 to run
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ConernestoAuthor Commented:
OK. It worked.
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ConernestoAuthor Commented:
For the columns inserted can a name for each column be inserted?
I want the first blank column Named "I O" and the second blank column "CmbGrp"

conernesto
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NorieVBA ExpertCommented:
This will add the headers for the new columns.
Option Explicit
Sub InsertColumns()
Dim rng As Range
Dim HeaderRow As Long
Dim NoColumns As Long

    HeaderRow = 1
    NoColumns = 2


    Set rng = Range("A" & HeaderRow)

    While rng.Value <> ""
        If rng.Value <> "" Then
            rng.Resize(, NoColumns).EntireColumn.Insert xlShiftToRight
            rng.Offset(, -2).Resize(, 2).Value = Array("I O", "CmbGrp")
        End If

        Set rng = rng.Offset(, 1)
    Wend
    
End Sub

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ConernestoAuthor Commented:
When I run the code to insert the two columns and label the two columns, I get a compile error "ambigous name detected:InsertColumns"

Below is the full code that I have:

Option Explicit

Sub InsertColumns()
Dim rng As Range
Dim HeaderRow As Long
Dim NoColumns As Long

    HeaderRow = 1
    NoColumns = 2


    Set rng = Range("A" & HeaderRow)

    While rng.Value <> ""
        If rng.Value <> "" Then
            rng.Resize(, NoColumns).EntireColumn.Insert xlShiftToRight
        End If

        Set rng = rng.Offset(0, 1)
    Wend
   
End Sub

Option Explicit
Sub InsertColumns()
Dim rng As Range
Dim HeaderRow As Long
Dim NoColumns As Long

    HeaderRow = 1
    NoColumns = 2


    Set rng = Range("A" & HeaderRow)

    While rng.Value <> ""
        If rng.Value <> "" Then
            rng.Resize(, NoColumns).EntireColumn.Insert xlShiftToRight
            rng.Offset(, -2).Resize(, 2).Value = Array("I O", "CmbGrp")
        End If

        Set rng = rng.Offset(, 1)
    Wend
   
End Sub
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