Send email with contents of certain cells in an excel table to a predefined list of contacts based on a list selection. Automatic based on conditions or button based.

Hello! I've been running into problems getting my flow to work correctly and I think the issue is that I am having problems pointing it to specific rows for actions.

What I need to do is this: I have a shared Excel file with different events being added to it constantly.

When new columns are added and data is entered for all known columns, I'd like to be able to send the contents of say columns A:Z from new rows (that say have a column that says NEEDS_EMAIL) to a predefined list of contacts. Which list is used would be defined by a column where you select LISTA vs LISTB or LISTC under CONTACTS.

Is this possible? I'd be happy to just have a button to hit to email the columns or even a flow to activate to catch all rows with NEEDS_EMAIL and sends A:Z to the contacts.

Thanks in advance!