What is the expiation for a woman who broke her fast in Ramadan for several years due to menstruation and only made up the missed days very late, and what is its amount in Saudi Riyals, and is it permissible to pay it to charities within or outside her city, and do charities accept this expiation and do they provide food?

You must make up the days you missed. If you knew the impermissibility of delaying making up the fast until after Ramadan (definition), then you must pay a fidya by feeding one poor person for each day. If you were unaware, then you are only required to make up the fast. The amount of food for feeding is one mudd of food (approximately 750 grams of rice) for each poor person. It is permissible to appoint someone to feed on your behalf. The monetary value is not sufficient according to the majority of scholars.