Hi Tapasree,
Your sentences confused me.
So here's the thing that you follow:
1. Select Read Excel operator. While selecting the checkboxes, select subject and body both. Click Finish.
2. Select Process Documents from Data operator.
3. Under Process Documents from Data operator, bring in Filter Documents by content each time. In each case, enter the following in the string field: re:, scheduled, planned, maintenance. Be sure you have not selected case sensitive and you have selected inverse condition.
Let me know if you face problems.