Hi, easiest solution is to extract alarms from alarm history and then filter out in excel. If it is a one time activity then you may want to do it manually but if it is a repeat activity you can use macros along with some batch files to automate whole process.
Usually for this kind of frequent requirements alarm management tools are used which collect alarms and events via OPC A&E and then they have inbuilt analysis options-it is useful but involves huge cost.
Hope it helps