Help with duplicate values

[soryjero]

i am programming a tool, but when i try to save in a file, i have a strange error, because i only want to save a value, but in the file appear two values. first time in INT32 format and then in Byte format.

 

Here is some screens:

 

Original file

 

2

 

and when i save in file

 

2

 

1E 00 00 00 is the length of the next phrase and i dont know why in save file appears duplicate first byte of length.

 

if you need some more information, you only have to ask me for it

 

i hope you can help me

 

thanks in advance