To get a closed work permit in Canada you need a job offer and approved LMIA from your employer. Generally speaking, these are very difficult to get.
Open work permits are only granted in very specific circumstances. On what basis do you believe you qualify for an open work permit? Do you have a spouse who is in Canada as a foreign worker and has an A, B or 0 skill level job? Have you completed a university or college program in Canada full time on a study permit? Anything else?