how to display both file entirely with difference like Beyond compare

[infuginindia]

Hi,
How to display both file entirely with difference like Beyond compare.

Entire code of file name in left side and entire code of file 2 on right side, and
difference highlighted.

Thanks in advance.
Arvind

[jfcherng]

Entire code of file name in left side and entire code of file 2 on right side, and difference highlighted.

set the context with a large enough number?

[infuginindia]

Thank you Jfcherng