Import business from 14.11.11 to latest

Hello !
Have been using Manager since version 14.11.11 . Fantastic program and many thanks to the developers.
The old mac book and OS is beyond upgrading.
Have downloaded latest Manager onto a new windows machine and when importing says is not SQlite
so I am guessing this is a different to format to my old version.
Is there a way to move the business and data into the 21 st century ?
Many Thanks

See this post Restoring data issue - #2 by Patch