Simply replace the unfilled areas such as "" and "[date]" with your information.
I would like to introduce myself as the new [name of position] here at [name of organization]. My background includes over [# of years] years in this [industry/field]. I look forward to getting to know all the talented people here at [name of company] in the coming months. I look forward to meeting all of you and addressing this company's unique challenges.
If you have any questions or concerns, please do not hesitate to contact me at any time at [phone #/email address].