1. collidr::CRANdf
    CRAN Package and Function Data: 1 May 2019
    csv| xlsx| json| ndjson| rda| rds
    data.frame|294190 x 2
  2. priceR::currency_info
    Information for each of 191 currencies
    json| ndjson| rda| rds
    data.frame|191 x 15