TAdvStringGrig to MDB?

I would need a fast way to transfer data (thousands of rows) from TAdvStringGrid to MDB (Access). It is too slow for me to copy row by row. Since there is no SaveToMDB method is there any other solution?

Sorry, there is currently unfortunately not a built-in method to export data to an MDB file.

I'd recommend to have a look at using OLE automation for this. A starting point might be the article:
http://www.aspfree.com/c/a/Database/Data-Access-from-Excel-VBA/