V allows you to specify a non-zero start of file position - any data before this position will be ignored.
To set the start offset, right-click on the position in the file where you want to start viewing from and select View/Layout->StartOffset->StartFromHere
Alternatively, you can specify an absolute position by selecting Set Offset from the above right-click menu or from the main View->StartOffset menu.
A solid blue line will appear at the top of the file, indicating that a non-zero start offset is being used.
Note that the start offset is not "sticky". That is, it is reset to zero once a new file is viewed.
This is useful if you want view files with fixed line lengths, but the fixed lines do not begin from the start of the file.