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remove everything but cell A1 across 500 excel workbooks

Posted on 2015-02-17
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Last Modified: 2015-02-18
i have 500 excel workbooks

column A is of varying length in each one

i would like to delete the values of the entire workbook...except for cell a1

thanks!

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Prior related question: http:Q_28618360.html
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Question by:finnstone
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Expert Comment

by:aikimark
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Are these CSV files or actual Excel workbooks?

So, after the code runs, there is only one non-empty cell in A1 in the first/only sheet?
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Author Comment

by:finnstone
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csv

exactly - first sheet for all 500 books
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Expert Comment

by:aikimark
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Wouldn't it be easier to create one workbook and the copy it over the others, replacing them?
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Expert Comment

by:aikimark
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Never mind.  That would only work if all the workbooks were identical.
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Expert Comment

by:aikimark
Comment Utility
Please test this:
Sub Q_28618738()
    Dim strFilename As String
    Dim wkb As Workbook
    Dim wks As Worksheet
    Dim vData As Variant
    Const cPath As String = "C:\Users\AikiMark\Downloads\Q_28618738\"
    
    strFilename = Dir(cPath & "*.csv")
    Do Until Len(strFilename) = 0
        Set wkb = Workbooks.Open(cPath & strFilename)
        Set wks = wkb.Sheets(1)
        vData = wks.Range("A1").Value
        wks.UsedRange.ClearContents
        wks.Range("A1").Value = vData
        wkb.Close True
        strFilename = Dir
    Loop

End Sub

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Expert Comment

by:DanCh99
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is it just Cell A1 you want to keep, or all cells in Col A?

And do you want to retain the 500 workbooks - ie NOT extract the 500 cell A1's to a single location instead?

if you're looking to build a master list of the contents of A1, and you can get a list of the filenames, you could use a formula like this:
="='C:\folder\["&A1&".xlsx]Sheet1'!$A$1"
where the filename is listed downwards in col A, and this formula is in Col B, for instance.  Obviously, change "folder" to be your actual location.

Then, copy all of Col B, and Paste Special.. Values over Col B.
then, do a Find/Replace for = with = (ie replace every equals sign with another equals sign), which will force Excel to recalcuate the constructed formulae.

If you need a list of the files extracting, we can probably figure that out too...
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Author Comment

by:finnstone
Comment Utility
Thx this should
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Author Comment

by:finnstone
Comment Utility
work although not sure if five hundred files overloads
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Author Comment

by:finnstone
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Question - can you modify your solution to also save the value b1 into the b column so that a1,b1 from every book are only values saved?
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Accepted Solution

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aikimark earned 500 total points
Comment Utility
Ok.  Test this:
Sub Q_28618738()
    Dim strFilename As String
    Dim wkb As Workbook
    Dim wks As Worksheet
    Dim vData As Variant
    Const cPath As String = "C:\Users\AikiMark\Downloads\Q_28618738\"
    
    strFilename = Dir(cPath & "*.csv")
    Do Until Len(strFilename) = 0
        Set wkb = Workbooks.Open(cPath & strFilename)
        Set wks = wkb.Sheets(1)
        vData = wks.Range("A1:B1").Value
        wks.UsedRange.ClearContents
        wks.Range("A1:B1").Value = vData
        wkb.Close True
        strFilename = Dir
    Loop

End Sub

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Author Comment

by:finnstone
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Expert Comment

by:aikimark
Comment Utility
don't forget to close this question
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