Importing Customers/ Vendors from CSV

SOLVED

We are returning to Sage 50 after not using the program for a couple years. We had a lot of corruption in our old Company file so we started from scratch on the new one.

My question is if I have customers and  vendors lists in CVS format, if those lists were exported from the corrupted company will that corruption follow along?

Most of the corruption issues were with End of Year and how our users connected. We have the new Sage on a new server, and users connect by the desktop app now.

I'm just wondering if having that info imported will make us at risk again, or if that data is likely unrelated to the customer list.