When you write business plan first you must know the name of the project, content of the business plan, you have to define management and organisation, the main information about person who invest money, type and structure of property, structure of organisation, available of human resources, members of management team, description of endeavor, product or service, what is your main product or service, you have to define marketing plan, profile of customers, also profile of business environment and branches of job you do, you have to do PEST analyse, what are political and law factors that influence on your business, social and culture factors, economic factors and factors of technology, you must know what is profile of competition, main competitors, do the analyse of competition, also I am good in working with Excel program, with sheets, Pivot Table, graphs, adding data, filtered it etc.