俺はRubyでの表 (csv, xlsx, xls) 読み込みを少し簡単にしたかもしれない #CSV - Qiita
https://qiita.com/dake_ns/items/7ee91d658df6e9169c01

show-o-atakun/yomise: A simple way to Open .csv, .xls, .xlsx files. You can convert it to 2D array, hash, dataframe. (Formerly easy_sheet_io)
https://github.com/show-o-atakun/yomise/tree/main

#ruby