Thank you! I already managed to work with binary files. Just needed to know how to convert hexadecimal to decimal. Thank you very much!

HI! I am not expert in VB, but I do some things "interesting". I did the following functions to read and write bytes from a file: Source code 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 Public Function Read_Hex(file_name As String, offset As Long, size As Integer) As String On Error GoTo erro Dim ROM As Long Dim i As Integer Dim data As Byte Dim data1 As String ROM = FreeFile Open file_name For Binary As ROM For i ...