migrating from 8.2 to 8.4

[princeb4u]

Hi,

Recently we migrated reports from 8.2 tp 8.4.

In report studio and query studio we have one problem in 8.4.it's not occur at the time we run the report in 8.2

Run the report with data and open in excel.it open's a report with no data.

Can you suggest me steps for the trouble shoot.