Thank you.

I have explained to them that it would be more efficient, smaller file size, user friendly and easier to apply animation, and also that they can't use the grid and drawing lines.

I asked them to have a look how I create these charts and they just don't want to know because according to them they don't possess my skills. I got the job because of my skills!

These are people who have been working for the same company for decades and don't like change! However, I'm determined to win them over somehow.