Get Last Populated Cell Address

Paste it on worksheet Change the Range Address and Press Shift+Ctrl+Enter

=IFERROR(ADDRESS(MAX(IF(LEN(A1:I36)>0,ROW(A1:I36)),0),MAX(IF(LEN(INDIRECT(MAX(IF(LEN(A1:I36)>0,ROW(A1:I36)),0)&":"&MAX(IF(LEN(A1:I36)>0,ROW(A1:I36)),0)))>0,COLUMN(INDIRECT(MAX(IF(LEN(A1:I36)>0,ROW(A1:I36)),0)&":"&MAX(IF(LEN(A1:I36),ROW(A1:I36)),0)))))),0)