On Thursday, 27 June 2019 at 13:31:23 UTC, Tabamon wrote: > I am new at D, I'm making a sudoku solver in D, I wanted to add > the option to read sudoku from a .txt file. 1) try to google "dlang read text file", most probably 1,2,3 link will help to u. 2) https://dlang.org/library/std/file/read_text.html string content = readText( fileName );