Best way to insert an Excel chart graphic?

Best way to insert an Excel chart graphic?

Trying to insert a chart from Excel into an HTML email for a campaign. Finding that saving the chart as a GIF or PNG, and then using Insert Image does not produce satisfactory results. Even tried resizing the image in Photoshop first. I notice Excel allows me to save the chart as a web page. Can I use this to insert a graphic that I can resize in an email? What do you recommend to get crisp graphics in my email?