Edit a Record Using Hexadecimal Values

You can directly edit hexadecimal values within a data file.

In the Data File Tools (Technology Preview) window, ensure you have Hex View enabled; see Show Contents of a Data File in Hexadecimal.
In the Hex pane, select the first character in the hex pair.
This highlights the hex pair and its corresponding character in the Unformatted Record pane.
Type a new two-digit/character hex pair, then press Enter.
The character is updated in the Unformatted Record pane.

Note: You cannot enter a numerical or character value if it results in an invalid hex pair.