prepositions 'at' and 'in

[Loislane]

In the list wouldn't be an option, on the list was correct.
I am speaking as a native English speaker from the UK and sometimes, the Americans do it differently.

[Hariom4me]

"i am complete novice at/in/to swimming."

which one of at,in,to is correct in the sentence.

i understand the use of "at" and "in", just briefly explain the use of "to" with example.

Thank You