Open the file in the E=Z Scan version for the radio you want to load it to. Under the FILE menu (IIRC), you will find "Restore Defaults" or similar. Click that. Then re-enter your radio-specific settings and you're ready to upload.
I'm sharing files this way between a TRX-1, a couple of legacy-upgraded WS-1080's, a WS-1095, and a pair of WS-1098's and have zero issues doing it this way.