grammar

[eddkzk]

Could someone give me a smooth explanation about when 'apart from' means 'in addition to' and when it means 'except for'. Thanks.
For example,what does it mean in the sentence below?In addition to or except for?
''Apart from its exact place, many things are known about the light house.''
I would really appreciate it, if you could illustrare the use of it. Thanks.

[David L.]

= in addition to: "Quite apart from working long hours, he (also) had a lot of financial problems on his mind."
Note how something additional is added - it is the same as saying,
'As well as (something), (there is/was) also (something more/something else)

=except for : the whole world seemed to be sleeping, apart from Barbara.
Here, Barbara is being 'separated out' from everyone else - they are sleeping, Barbara isn't. Something (Barbara in this example) is being 'removed', set apart from all the the rest, because it is different.