FBL5N-Export file ISSUE

Hi Experts

While I am taking data of FBL5N(Customer data) in to following path

Menu-List-spreadsheet-Table then document date is coming in this pattern

Doc. date

40074

40169

40170

40170

And client require it in this path only.Please let me know that there is any other sollution or OSS note.

Regards

sachin