This is a 4D First database.
Do you want to convert it to a 4th Dimension database?
Warning: you will not be able to use it with 4D First anymore.

You cannot open a 4th Dimension Database with 4D First.

You cannot convert a locked datafile.

You cannot convert a locked database.

You cannot convert a compiled database.

You need to convert this database on a Macintosh platform or to compact it with 4D Tools version 3 for Windows.

You need to convert this database on a Windows platform or to compact it with 4D Tools version 3 for Mac.

Any available segment.

You need to convert this database.