read this review of the package.

The R package readODS allows you to import ODS spreadsheets to R. It’s slow, but it works. In an attempt to speed up things, I thought providing column types would help. I didn’t find an improvement, but I noticed that the documentation wasn’t really clear (“refer to readr::type_convert to specify cols specification”). It seems like you do need to refer to type_convert to understand how to specify column types, and then feed them to readODS like this:

readxl can accept more options.