Dates on Exported CSV files are in Vietnamese (Please Help) (Pics Attached)

I exported all my records in .csv, and when I opened it for review with excel, the date records were all Vietnamese. And I live in California.

At first I wasn’t sure what language it was, but after much googling found that it was Vietnamese. Now I have a lot of date records and it is highly impractical to go through all of these and fix them manually.

This issue occurs only for things which are dates, and not texts.

Anyone else have this issue, or have any guidance for me?