Your users will be able to fill in dates in a mouse click and you will be 100% confident that all dates are entered in an appropriate format.If you are using a 32-bit version of Excel, you can use Microsoft's Date Picker control.
Each sheet is an identical template that I use for my reports.
To fix this, double-click the right border of the column to auto fit the date, or drag the right border to set the desired column width.
If this does not help, please check other Excel date format troubleshooting tips.
The most obvious visual indication that Excel has recognized the date you've entered is its right-alignment in a cell as opposed to left-aligned text values.
If Excel has failed to recognize your input as a date and you see it left-justified in a cell, try inserting a date in some other format close to your default short or long date formats.