Tips on losing 2-3 kilos a week

Further details: Male, 45, overweight already at 120 kilos, 177 cm tall, sedentary job.

Can a weight loss of 2 to 3 kilos be accomplished for a month or two? How? Any tips from professionals.

And before someone just says "put the fork down".... I'm after genuine, constructive help and tips.

Thank you.