Bidding as subcontractor for commercial jobs confused about the bidding format.

I am a general contractor with a primary focus on residential construction, though I’ve completed a few commercial build-outs. I am now transitioning toward bidding on commercial projects as a subcontractor. While I have experience creating proposals, I’m seeking advice on how to structure bids for commercial jobs. Is there a specific format I should follow, or are there templates available that can help me present a professional and polished bid?