Importing CSV

SOLVED

Hi all and glad to be here.

I am using Sage50 to keep track of accounting that needs to be imported using QB CSV files.  I don't know if there is an easier way but I finally resorted to exporting Sage files to then populate using the QB data (hopefully I'll figure out formulas to automate this but again, I'd appreciate any suggestions on an easier way to import QB files).

My main question, however, is if each import will overwrite existing data.  For example, with vendor lists or sales/purchase journals, will I need to continuously add what was previously imported or can I only import new entries and they will be added to existing data?

Thanks for your time,

Damon