Excel file as ADODB says Read Only

Hi

Working in Word 2010 VBA.  using the method below to read from, and in this case, write to an Excel file using ADODB.  I've used this method countless times with no problem.  But tonight all of a sudden when I reaches the objRecSet.AddNew command, it gives me the error message "Cannot update.  Database or object is read only."  The Excel file is not read only, is not open in Excel, and was properly shut down by my last ADOBD routine.  

What could be causing this?

Set objConnection = New ADODB.Connection
objConnection.ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" & DataFile & ";Extended Properties=""Excel 12.0 Xml;HDR=YES;IMEX=0"";"  'HDR=YES means has col headings
objConnection.Open
Set objRecSet = New ADODB.Recordset

objRecSet.Open TableName, objConnection, adOpenKeyset, adLockOptimistic 

    For myrow = 0 To SaveSystem.ListBox3.ListCount - 1
        objRecSet.AddNew
        objRecSet.Fields(0) = Me.TextBox1.Text
        For mycol = 0 To 4
            objRecSet.Fields(mycol + 1) = SaveSystem.ListBox3.List(myrow, mycol)
        Next mycol
    Next myrow

objRecSet.UpdateBatch
     
objRecSet.Close
objConnection.Close
Set objRecSet = Nothing
Set objConnection = Nothing

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Bryce BassettFreelance VBA programmerAsked:
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x-menIT super heroCommented:
"The Excel file is not read only, is not open in Excel, and was properly shut down by my last ADOBD routine.  "...still, sounds like it is in use, some how. can you reboot?
Bryce BassettFreelance VBA programmerAuthor Commented:
I did reboot and the problem persists.    Any other suggestions?  Is my syntax otherwise in good shape?

Thanks
Bryce BassettFreelance VBA programmerAuthor Commented:
I finally realized what was going on here.  I had my installer put files in the "Program Files" folder.  Then when my code tried to update the file there, it was not allowing me to write to that location.  Solution is to keep all files you need to write to in the user's AppData area.

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Bryce BassettFreelance VBA programmerAuthor Commented:
This wasn't really an issue with the code itself, but the installation environment.  Not fair to expect the experts to know what was going on with that.
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