#VBA, 91 Bytes

Anonymous VBE immediate window function that takes no input and outputs the alphabet triangle to the VBE immediate window

For i=-25To 25:For j=0To-Abs(i)+25:s=s+Chr(65+j):Next:?s;StrReverse(Left(s,j-1)):s="":Next

-1 byte for use of ; over & in ? statement

VBA, 91 Bytes

Anonymous VBE immediate window function that takes no input and outputs the alphabet triangle to the VBE immediate window

For i=-25To 25:For j=0To-Abs(i)+25:s=s+Chr(65+j):Next:?s;StrReverse(Left(s,j-1)):s="":Next

-1 byte for use of ; over & in ? statement

#VBA, 92 Bytes

Anonymous VBE immediate window function that takes no input and outputs the alphabet triangle to the VBE immediate window

For i=-25To 25:For j=0To-Abs(i)+25:s=s &Chr(65+j):Next:?s;StrReverse(Left(s,j-1)):s="":Next

-1 byte for use of ; over & in ? statement

#VBA, 91 Bytes

Anonymous VBE immediate window function that takes no input and outputs the alphabet triangle to the VBE immediate window

For i=-25To 25:For j=0To-Abs(i)+25:s=s+Chr(65+j):Next:?s;StrReverse(Left(s,j-1)):s="":Next

-1 byte for use of ; over & in ? statement

#VBA, 92 Bytes

Anonymous VBE immediate window function that takes no input and outputs the alphabet triangle to the VBE immediate window

For i=-25To 25:For j=0To-Abs(i)+25:s=s &Chr(65+j):Next:?s &StrReverse(Left(s,j-1)):s="":Next

#VBA, 92 Bytes

Anonymous VBE immediate window function that takes no input and outputs the alphabet triangle to the VBE immediate window

For i=-25To 25:For j=0To-Abs(i)+25:s=s &Chr(65+j):Next:?s;StrReverse(Left(s,j-1)):s="":Next

-1 byte for use of ; over & in ? statement