Data Inspector
Hex Workshop includes a Data Inspector, which displays the caret data as decimal and binaries values. The Data Inspector interprets the hexadecimal data at the cursor position as a byte, unsigned byte, short, unsigned short, long, unsigned long, quad, unsigned quad, float, double, MSDOS date, MSDOS time, FILETIME, time_t, time64_t and binary.
Within the Data Inspector you can modify the data at the cursor position by highlighting the data type/value you wish to change. Hex Workshop highlights the data within the editor using the Data Inspector Selection Highlight.
Right click on the data inspector window and select "Manage List" to hide and show data inspector types.
The Data Inspector can be toggled on/off (shown/hidden) from the Options Menu, the Data Inspector right-click context menu or by pressing Ctrl+I.