With locale set to Brazil (number format is 24.999,75 and date is 20/5/2017) typing a number with a point separator (.) results in different interpretations depending on the number digits after the point:

#1 after the separator = interpreted as a date enter image description here

#2 after the separator = interpreted as text enter image description here

#3 after the separator = interpreted as a number without the point. enter image description here

Are there any work arounds for this? I tried lots of locales and all of them present the same or analog behaviour. I fear users will eventually make a mistake inside my sheet typing a point instead of a comma and I'll have to track it down in the future.

  • Welcome to Web Applications. What is the purspose of writting a number with a dot when using Brazil as the regional setting?
    – Rubén
    Oct 12, 2020 at 4:42

1 Answer 1


You could use Data > Data Validation and set the cell to accept only valid dates (using your own textual help for users) refusing and invalid entry.

enter image description here

  • Actually I need it not to be a date. Oct 13, 2020 at 20:17
  • Same answer then... just select Number under Data Validation...
    – 24601
    Oct 13, 2020 at 20:20

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