X - êîîðäèíàòà X
XCOPY – êñåðîêîïèÿ
XDR (External Data Representation) -
ïðîòîêîë âíåøíåãî ïðåäñòàâëåíèÿ äàííûõ
XL – ñì. Excel
.XLA – ôàéë íàäñòðîéêè ðåäàêòîðà
ýëåêòðîííûõ òàáëèö Excel
.XLC - ôàéë äèàãðàììû ðåäàêòîðà ýëåêòðîííûõ
òàáëèö Excel
.XLK – ôàéë ñ ðåçåðâíîé êîïèåé ýëåêòðîííîé
òàáëèöû Excel
.XLM - ôàéë ìàêðîñîâ ðåäàêòîðà ýëåêòðîííûõ
òàáëèö Excel
.XLS - ôàéë ñ ýëåêòðîííîé òàáëèöåé Excel
.XLT - ôàéë øàáëîíà ðåäàêòîðà ýëåêòðîííûõ
òàáëèö Excel
XY graph, x-y graph – êîîðäèíàòíûé ãðàôèê,
ïîòî÷å÷íûé ãðàôèê