We do not use “as well” at the beginning of a sentence. You can use “also” at the beginning of a sentence, but try to avoid it if possible (it sounds a bit awkward); instead, try combining the two ideas into one sentence. - I went to the store yesterday to buy bananas. Also, I bought some apples and carrots. (Ok, but not great.) - I went to the store yesterday and bought some bananas, carrots and apples. (Better.) Depending on the complexity of the text, you may not be able to combine the ideas so easily. You can simply use “as well” (mid-sentence or at the end) in those cases, or use a semicolon (;) to combine two related sentences. - We manufacture parts for automobiles and specialized farm equipment. Also, we have a full catalogue of products available online. (OK, but not great.) - We manufacture parts for automobiles and specialized farm equipment. We have a full catalogue of products available online as well. (Better.) - We manufacture parts for automobiles and specialized farm equipment; we have a full catalogue of products available online. (Better.) I hope that’s helpful.

Thanks， Jack.

We can use the construction 'As well as + noun/gerund + clause' to include another thing/activity. For example, As well as shopping, I went to the bank'. Or 'As well as ice cream, I bought toilet paper'.