The pgfplotstable tag is suitable for questions related to the pgfplots data handling or table typesetting via the package
pgfplotstable. Though it is shipped as a by-product of
pgfplots package, it offers a quite comprehensive table typesetting framework.
The main focus of this package, is to acquire data from various sources, to manipulate data, to allow for changing the table column/row properties and eliminate the manual (La)TeX-table typesetting.