excel-dates

问题 How to convert in modern C++ (C++11/14/17) a double into a date time using the date.h library, when the double has been generated while exporting an Excel worksheet as a CSV file? For instance, the datetime appearing in Excel: 21/08/2017 11:54 has been converted by Excel into the CSV file as the double: 42968.4958333333 Thanks. EDIT on 11/07/2019: This questions is about the use of the date.h library. The other questions pointed out as "possible duplicates" does not require the use of this

问题 Closed . This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 7 days ago . from date format change to this format - 01-Jan-2019 in excel using java. I want to read the date format in excel. if suppose having any date format want to change DD/MMM/YYYY format. ie., 01-Jan-2019. any one please suggest and help me. 回答1: I could not get your requirement clearly. However, if you