[5GB] Neopets Database

I need some help? I downloaded all 4.

Data3.rar and Data4.rar I got the files to extract/unzip beautifully. Both sets of data are showing in txt files. They open info is there. However I noticed that between these 2 only half the data is available.

Which brings me to Data2.rar and data.rar they are not opening the way the other 2 did. Which I assume is where the rest of the txt files are. Does anyone have any ideas?