GS-Calc can be helpful, for example, to:<p>* process large (e.g. 4GB+) data sets in a spreadsheet;<p>* load GB/32 million-row files in seconds and use them without any crashes;<p>* load/edit in-place/split/merge/clean CSV/text files with up to 32 million rows and 1 million columns;<p>* use your Python functions as UDF formulas that can return to GS-Calc images and entire CSV files;<p>* use a set of statistical pivot data functions;<p>* create and display all popular chart types with millions of data points instantly.<p>Suggestions for improvements are welcome (and often implemented quite quickly).