SOS ----SSRS export to Excel

Hi guys

Please help to fix this issue out. I have been working on it for several days.

After exporting SSRS reports to Excel, Date with holding Global Execution Time in SSRS is not displayed in the Excel file when print it out.  MY all SSRS reports has the same problem. I use SQL2012 data tool, Excel 2013

Example: it likes this one in SSRS   

Print Date: 09/17/2017      Page 1 of 3

In Excel

Print Date:                        Page 1 of 3

I will appreciate all replies

Thanks a bunch

Lucy