формат файлов в каталоге archive

{$APPTYPE CONSOLE}
uses  windows, sysutils;

function readint(fh: THandle): longint;
begin if FileRead(fh, result, sizeof(result)) <> sizeof(result) then result:= -1; end;

function readstr(fh: THandle; maxlen: longint): ansistring;
var tmpc : ansichar;
    i    : longint;
begin
  i:= 0;
  setlength(result, maxlen);
  while (FileRead(fh, tmpc, sizeof(tmpc)) = sizeof(tmpc)) and (tmpc <> #0) do
    if (i < maxlen) then begin
      inc(i);
      result[i]:= tmpc;
    end;
  setlength(result, i);
end;

function convertdatetime(adate, atime: longint): tDateTime;
var y, m, d  : integer;
    h, mi, s : integer;
begin
  d:= adate mod 100; adate:= adate div 100;
  m:= adate mod 100; adate:= adate div 100;
  y:= adate;
  s:= atime mod 100; atime:= atime div 100;
  mi:= atime mod 100; atime:= atime div 100;
  h:= atime;
  result:= encodedate(y, m , d) + encodetime(h, mi, s, 0);
end;

type tCandle = packed record
       o, h, l, c, v : double;
       d, t          : longint;
     end;
var  fname : ansistring;
     fh    : THandle;
     cndl  : tCandle;
     len   : longint;

begin
  fname:= paramstr(1);
  if fileexists(fname) then begin
    fh:= FileOpen(fname, fmOpenRead or fmShareDenyNone);
    try
      writeln('ver: ', readint(fh));
      writeln('ID: ', readstr(fh, 4096));
      repeat
        len:= FileRead(fh, cndl, sizeof(cndl));
        if len = sizeof(cndl) then
          with cndl do
            writeln(format('o: %.5f h: %.5f l: %.5f c: %.5f v: %.5f ts: %s',
                           [o, h, l, c, v, formatdatetime('DD-MM-YYYY HH:NN:SS', convertdatetime(d, t))]));
      until len <> sizeof(cndl);
    finally FileClose(fh); end;
  end else writeln('File ', fname, ' not found!');
end.