You do not. Excel does not record the change date of an individual cell.
Excel does not have the ability to time-stamp entries. The only date-stamp you can get is the file date when you save the file. Of course, you could write a macro to record the time of the entry.
Try this formula: =NOW() If you don't want the time, the formula is =TODAY()
DATE STAMP -- The function to show current date and time in Excel is =NOW().Now Function
You can remove date stamp from image using Inpaint http://www.theinpaint.com/inpaint-how-to-remove-date-stamp-from-photo.html
numerical
a serial value to the date
you should date stamp a letter because then others know when it came in and when in can be distributed
Simplest and fastest way is to purchase a rubber date stamp. You can stamp the date on the back of the card above the manufacturer logo.
post card with 1 cent stamp date of 1911
Format / Cells / Date
date stamp