Async example?

[mainrs]

I have some heavy calculations to do and would love to make them async if possible. Basically a huge number of cells that each would use a given formula that I implement in rust.

Could you help me out on how I would make that formula async so it runs faster?
I have about 350000 rows and sequentially calculating them takes ages.

[ronniec95]

Hi, I know this is an old comment but I've added async support on my fork of this

https://github.com/ronniec95/xladd-derive

It uses a proc macro to make it easy to write excel udfs.