Executive assistants are similar to administrative assistants; however, administrative assistants tend to focus on clerical work, while executive assistants are responsible for assisting an executive of the company, usually with higher-level tasks. While the types of tasks that executive assistants perform can vary from position to position, they all tend to perform similar high-level tasks and duties.Executive assistants are similar to administrative assistants; however, administrative assistants tend to focus on clerical work, while executive assistants are responsible for assisting an executive of the company, usually with higher-level tasks. While the types of tasks that executive assistants perform can vary from position to position, they all tend to perform similar high-level tasks and duties.