Files imported from mainframe computers and other computer systems may contain dates in the format yy/mm/dd. These date formats are not recognized by Excel and are imported as text strings. This article describes how to convert these dates into formats recognized by Excel.
Method 1: Convert Text to Columns
To convert the data to correctly formatted serialized date numbers, follow these steps:- Select a cell that contains a date that you want to convert, and then click Text to Columns on the Data menu.
NOTE: You can multiple cells if they are in the same column. - In step 1 of the Convert Text to Columns Wizard, click Delimited, and then click Next.
- In step 2, select the Tab check box, and then click Next.
- In step 3, click Date under Column data format, click the arrow in the box next to Date, click YMD, and then click Finish.
NOTE: Your original data is overwritten unless you enter a new destination. (The default value is the first cell of the range that you selected in step 1.)
Method 2: Use a Formula
To convert the date text to a serial number, type the following formula in the worksheet:
B2: =DATEVALUE(MID(A2,4,2)&"/"&RIGHT(A2,2)&"/"&LEFT(A2,2))
This formula assumes that the date to be converted is in cell A2 and that the serial number is in cell B2.