Don't choose open, choose "save as" and you will see where the file will be saved. Then it seems as zip files are not associated with Windows unpacking function. Download the free Winrar program and use that to unpack the file.I checked a box that said unblock open. It opened a text file
You can browse thru your programming on the scanner and compare with the database here at RR and correct and add things that doesn't match up.If the TRX-1 has all the current local stations already installed, is it necessary to connect it to a PC?