the reason(s) is (are) as follows
Fixed phrase used to introduce a list of reasons, often in formal or written contexts. Literally 'reasons like the left', referring to text written to the left (or below) in traditional vertical writing.
For the reasons stated below, today's meeting will be postponed.
Compound of 左 (left, referring to text written to the left in vertical writing) + のような (like) + 理由 (reason). The expression reflects the traditional vertical writing direction where subsequent text appears to the left.