Basic data sonification query / coll, buffer, large list length

Hello
I have some data that I'd simply like to write into a buffer and then use for some waveform synthesis, it's a time series of 54,800 points.
I have the data in a spreadsheet but I'm struggling with getting it into Max. 54.8k is too large to copy into a message, after which I'd then scale it to -1 and 1, write into a coll object, and then into buffer which would be read by a cycle~
Anyhow I'm a little stuck on the first hurdle of the data transfer and would be grateful for any pointers.
Cheers