New Calc Document

1: Insert in cella "a1": 01/10/1582 ( show 01/10/82 )
 format of tah data is dd/mm/yyyy ( italian ) ( 1 oct 1582 )

2: insert in cella "a2" -> =a1+1

3: copy a2 in a3..a20

4: it is ok

01/10/82
02/10/82
03/10/82
04/10/82
15/10/82
16/10/82
17/10/82
18/10/82
19/10/82
20/10/82
21/10/82
22/10/82
23/10/82
24/10/82
25/10/82
26/10/82
27/10/82
28/10/82
29/10/82
30/10/82

5: export in DBF

in the dbf file I found this

15821011
15821012
15821013
15821014
15821015


in the first row, 01/10/1582 (dd/mm/yyyy) 

I found 15821011, but 01/10/1582 (dd/mm/yyyy) is not 15821001 ?