Hi @Neil_Jewett
I’m not familiar with Invoice To Go. I’ve done a quick search however, and believe this is Invoice2go, is that correct?
If so, there does appear to be an export option within their app, according to their guide:
If you could export a list of invoices as a .csv file, we can certainly take a look and see if we can get these to import for you.
For reference, there’s a guide to importing your invoices, here: