Excel Date Conversion from yyyymmdd to mm/dd/yyyy

Question

I have been searching for about an hour on how to do this in Excel.

I have an Excel file that was created from an old system and I am pulling information from a SQL Server Database, I will be inputting the information back into the SQL Server Database and would like the Dates to match.

I have tried Creating a Custom Format, but I am unsure if I even did it Correctly. I found several places where they want to go the other way mm/dd/yyyy to yyyymmdd but they have not been helpful.

I am unfamiliar with using VBA in any Microsoft Products otherwise I am sure that this would be a simple Task.

I have two separate columns that need to be changed.

How do I Format the entire column from (float)yyyymmdd to a (Date)mm/dd/yyyy

Answer 1

You can convert the value to a date using a formula like this, next to the cell:

=DATE(LEFT(A1,4),MID(A1,5,2),RIGHT(A1,2))

Where A1 is the field you need to convert.

Alternatively, you could use this code in VBA:

Sub ConvertYYYYMMDDToDate()
   Dim c As Range
   For Each c In Selection.Cells
       c.Value = DateSerial(Left(c.Value, 4), Mid(c.Value, 5, 2), Right(c.Value, 2))
       'Following line added only to enforce the format.
       c.NumberFormat = "mm/dd/yyyy"
   Next
End Sub

Just highlight any cells you want fixed and run the code.

Note as RJohnson mentioned in the comments, this code will error if one of your selected cells is empty. You can add a condition on c.value to skip the update if it is blank.