It all depends on the type of data you want to import. You can use these methods for other Access data:

OpenTable, OpenQuery, OpenForm, OpenReport, OpenModule

If it's an Excel file that hasn't been imported to an Access table, use:

TransferSpreadsheet

Text files would use TransferText

The preferred way for me to import data is by query. You can easily create macros and modules to automate your queries. Good luck!