It is used to introduce additional information in a sentence.
The adverb 除此之外 is used to complete a previous phrase. It may be placed before a predicate either at the beginning or in the middle of a sentence.
除此之外 is separated with commas.
He is a teacher. I don’t know anything else about him apart from this
tā shì ge lǎoshī, chú cǐ zhī wài, wǒ bù zhīdao biéde
You need money and time. In addition, you have to work a lot