Converting Mac ProCite v.4.0.3 to Mac EndNote X1 or X2


 Dusting off an old Ph.D. effort. Have a nice (400+ cites) Mac ProCite v.4 database on my old Mac running OS8.1. If I follow the instructions at

on converting a ProCite database to EndNote using the steps outlines in

Import 3: Can I convert a ProCite database to EndNote? […Output Style RIS-EndNote.pos … save as a text file (with a file extension of .txt)…transfer the file to the comput…]

should I be able to import the database and use it in X1 or X2 on my newer Mac?

Suggestions as to purchasing X1 or X2 in this regard?