The serial number or serial date is the number that Excel uses in calculating dates and times entered into a worksheet, either manually or as a result of formulas involving date calculations.
Nọmba serial ma ọ bụ ụbọchị serial bụ nọmba nke Excel na-eji na-agbakọ ụbọchị na oge abanye n'ime akwụkwọ akwụkwọ, ma ọ bụ site n'aka usoro nke gbasara nchịkọta ụbọchị.