Excel cell format change without conditional formatting

[longnguyen]

Hi everyone,
I have an Excel file where cell colors change automatically as I type characters (numbers don't trigger this). This behavior is set up for the range Sheet1!A3:R3.
I've check conditional formatting, VBA/Macro code but they don't exist.
Since I couldn't attach the file directly, I've shared it on Google Drive, I also snapshot some photos for your reference.
Could you please take a look and explain how this is achieved? I'm new to this feature and would appreciate learning more about it.

Thank you very much!
Loading Google Sheets

 

[rowebca]

This is a normal behavior, if you want to disable this please disable "Extend data range formats and formulas", look at the attached screenshot.

Regards,
GB

 

[mumps]

Copy and paste this macro into the worksheet code module. Do the following: right click the tab name for your sheet and click 'View Code'. Paste the macro into the empty code window that opens up. Close the code window to return to your sheet. Enter a value in cell O3 and press the ENTER key.

Private Sub Worksheet_Change(ByVal Target As Range)
    If Target.CountLarge > 1 Then Exit Sub
    If Intersect(Target, Range("O3")) Is Nothing Then Exit Sub
    With Target
        .Font.Bold = True
        .HorizontalAlignment = xlCenter
        .VerticalAlignment = xlCenter
    End With
End Sub

 

[longnguyen]

Copy and paste this macro into the worksheet code module. Do the following: right click the tab name for your sheet and click 'View Code'. Paste the macro into the empty code window that opens up. Close the code window to return to your sheet. Enter a value in cell O3 and press the ENTER key.

Private Sub Worksheet_Change(ByVal Target As Range)
    If Target.CountLarge > 1 Then Exit Sub
    If Intersect(Target, Range("O3")) Is Nothing Then Exit Sub
    With Target
        .Font.Bold = True
        .HorizontalAlignment = xlCenter
        .VerticalAlignment = xlCenter
    End With
End Sub

thank you bro but in my case, I cannot determine any VBA code, therefore, I refer to research how it is working.

 

[longnguyen]

This is a normal behavior, if you want to disable this please disable "Extend data range formats and formulas", look at the attached screenshot.

Regards,
GB

mumps, thank you very much, I thought this some tricks but it is simplest way.​

 

[mumps]

You are very welcome.