Hello emarbe,
If you want to express interest and excitement with a neutral tone, then your current message is a good start. Beyond some grammatical and punctuation mistakes which I will fix below, I suggest that you immediately and clearly accept the invitation. Also, I am confused about HOW/WHAT thhis experience will improve for you, so I inserted some more detail. Here are my corrections for your message:
"I am thrilled to accept your invitation and will look forward to the upcoming visit. This experience will give me a chance to learn about your company and improve my understanding of the industry.
Thank you very much,
emarbe"
Good Luck!
Cooper