Hi Nanako, I found this online. Does it help?
Apart from and except for are multi-word prepositions. Apart from can mean either ‘including’ or ‘excluding’:
Apart from Germany, they also visited Italy and Austria. (including Germany, in addition to Germany)
I like all vegetables apart from tomatoes. (excluding tomatoes)
Apart from Friday, I’ll be in London. (excluding Friday)
Except for or except only mean ‘not including’ or ‘excluding’:
I like all vegetables except for tomatoes. (excluding tomatoes)
Except for Jim, who is unwell, they are all ready to leave for America tomorrow.
She enjoys all sports except swimming.