Computer Problem when using Excel file

[Anna]

Hi,
I have the database file located in company network,
specially pivottable and pivotchart sheet, when I click on
any cell instead of have one pivottable and pivotchart,
the file start spreading several table and chart on top
each other. and It's happend only on my computer, I try a
few different computers, they are working fine.
Can anyone please tell me what problem is it? How can I
fix this problem?

Thanks a lot.