A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
You can do it automatically with a macro, but you can easily do it manually, too...
Select your column. In the Data tab choose Text to Columns. Click the Delimited radio button and click Next.
Check the Space checkbox and click Next. Select the column(s) to the right of the 5 digits and click the Do not import radio button. Click Finish. Won't take you 30 seconds...