Dates shown in one format and when clicked, shown in another format

Joined
Jun 28, 2024
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When i view my excel file, the dates are in dd/mm/yyyy format. When i click on the date, it changes to mm/dd/yyyy format. When i click on format cell, the format is dd/mm/yyyy. This is causing me trouble as i have built an excel processor app that is not functioning correctly due to this. Why is this happening? What can I do?
 

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are the values actually changing? Excel displays your system default date format for the date in the formula bar, but the values are not changed. If this is not the explanation, then please show some examples of how the values are changing?

1719755649496.png



Book1
ABC
1
2value:display
3Short (my stystem)454132024-05-01
4Long45413Wednesday, May 1, 2024
5mm-dd-yyyy4541305-01-2024
6dd-mm-yyyy4541301-05-2024
Sheet2
 
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