From an input Excel containing actions performed and items used by Dota players, we want to determine frequent combinations of actions commonly performed by certain heroes in a short period of time. We call these Combos

An Excel file in format xlsx containing a single sheet with three columns:

• Hero: The name of the hero
• Item: A list items used. Each element is a JSON object with two fields: "item" with the item name and "time" with a timestamp when was the item used
• Ability: A list of abilities invoked. Each element is a JSON object with two fields: "ability" with the name of the ability invoked and "time" with the timestamp when it was invoked

• Combo: A rapid succession of items used and abilities invoked during a small predefined interval Interval: Time interval during which a sequence of abilities and items used can be considered a combo

The script generates a csv file containing three columns:

• Hero: The name of the hero/character
• Combo: The combo identified (succession of items and abilities)
• Occurrences: The number of times the hero executed the combo