Hi!
44096? The number you got is due to the fact the Excel column is formatted as Date, right?
It represents nr of days since 1899-12-30; it's the internal format used by Excel.
So either you switch the Excel column format into text, and apply @CFernandes suggestion or, keep it as date format, and once in your Flow, transform into ISO 8601 date format, wich is the internal one handled by Power Automate. Wanna keep the date format? Then you can use the following WDL expression:
addDays('1899–12–30T00:00:00Z',int(item()?['TestingDate']))
Just replace item()?['TestingDate'] and use instead the dynamic content element representing your Date column.
Please note addDays() offers optionally the possibility to customize ISO 8601, in a similar way as formatDateTime() does. I haven't customized the output in my example.
For more info, please have a look to this excellent article:
https://www.bythedevs.com/post/working-with-date-time-data-of-excel-in-power-automate
Hope this helps