MapInfo: About Import feature

Product Feature: Import
The Import feature allows the user to import only one file at a time.

To import multiple files, use MapBasic to go through a list of file names and use MapBasic Import command.

For more information, open the MapBasic help file and search for "import". It will take to a page and from there select 'Importing MIF/MID, PICT, or MapInfo for Dos files'.

If the issue is unresolved after following these steps, contact customer support for further assistance.
UPDATED:  January 8, 2019