A family of Microsoft relational database management systems designed for ease of use.
Your follow up comment was hidden when I posted my first answer (a common problem here is the way comments and answers are interleaved and hard to follow).
You said, "I am using the access ODBC to pull data using Crystal reports"
Crystal reports is, as the name suggests a reporting tool. It uses data from a database source. So your clarification suggests that what you are doing is pulling data from an Access ACE engine for Crystal Reports. Is that correct? Or do you mean something different?