treasurer (npm): Read and write 2d data sets in form of *.json, *.csv or *.tsv... e.g. time series such as historical stock prices.
Keywords: read|write|json|csv|tsv|dependency-free|leightweight|file|file system|lightweight|2d-data|2d-array|array|data|dataset|data set|2dimensional|2d|persistence|serialization|filesystem|mixed-values|nodejs|treasure|tyepscript