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Excel data file -column data type keeps changing from custom date to general format

The date type keeps changes on my excel file. Its only my date columns that are affected, but its all date columns.

I have 3 date columns, they date format changes from a custom (m/d/yyyy) to general format. All of the old entries change to the to number(44193.2916666667) and all new entries are insert with the universal date(2020-11-09T07:00:00.000Z). There are multiple tables in the excel file  with date columns and all of them change. 

 

I will change everything back and then it seems to be okay for while. I have no idea why it changes or better yet how to fix it.

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Community Support
Community Support

Hi@jbungay,

Based on the issue that you mentioned, do you want to make the date column stay as previously looks like?

Could you please share a bit more about the scenario:

  • how you set these date columns, format it as the Date type in Excel format cells?
  • do you have date time within the columns or only date?
  • how you update these date column in PowerApps, using the DatePicker?

I have a test on my side and do not have the same problem.

I suggest that if you have a date only column, please set it as the General type and format it as "m/d/yyyy" when saving data from PowerApps.

Further, here is a user who met the same issue with you, please check the thread:

https://powerusers.microsoft.com/t5/Building-Power-Apps/Date-Format-changes-in-excel/td-p/670251 

Hope it could help.

Best Regards,

Qi

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