Can xnview be used for possible privacy breach?

I currently own but share with significant other xp pro desktop. I've noticed a lot of weird file exts lately. Well I opened up xnview and tried to access some of these files. Not sure I understand all. I found .txt files in code or something, well I finally got copies of 3 0r 4 files that began with just one file. It just kept leading to other files. It seems a little suspicious but I don't know all the lingo. Can you tell me if my computer or my information is being sabotoged. I can send you the files, the first starts out as file name signons3.txt with only 3 things on the page
(#2e ) no parenthesis. That file led me to file name (DOM source of selection.txt), that led me to file name (Dom source 2 firefox.txt) and then to file name (dta_log2.txt) Can you help make sense of this code and tell me if someone is abusing the use of my computer? I'll atach the files but you'll have to have xnview on your machine and open them by'right clicking the file with your mouse and selecting edit. Thank you in advance for your assistance. The possible breach of information has me worried.:confused Thank you Lola

 

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Thank you for your response. I'm not very knowledgeable in this area and not sure I understand all.
On just my personal home computer for just surfing and basic apps why would someone (BF) want or need this capability? Know one uses it for any work reasons. Basic apps are on the computer thats it except this xnview thing. Are these basic app file exts being purposefully created or changed to differerent ext sources that are uncommon on a typical computer like mine for just home use? If so I would tend to suspect the other user is doing this to disguise routine documents so as to hide or be unreadable to me because I am not familiar with anything but the basic apps and file exts that open up legible? What else would be the purpose? I am the only other user and owner of a simple computer not used for any work purposes. The other user does'nt use for work and I only see typical surfing and basic files being opened legibly as is common. The only thing that got me questioning this was that all these weird file exts with contents that appear in illegible type started showing up. So I began to investigate. I don't want this other user to be using my computer to do something illegal or unethical. Please advise so if I need to I can stop this other user from using the computer at all. What was in those attachments I sent? I feel I need to take action to protect myself either legally or ethically or both. Oh yeah the other user put xnview on my computer. I never needed to open any files with less common exts or store data in some other form than the basic file apps. I just need to protect myself. There is some purpose this other user is doing this and that worries me. Thanks in advance[/FONT][/FONT].eek :boxing

 

:confused :majorWhy would someone want to do this on a typical personal home computer with only two users? Myself who owns it and one other. Not used for work just for surfing and basic applications. The other user put xnview on the machine. Now all these weird exts and coded documents are showing up that I don't know why they are like that or how to read or open them.Never had happen before or had a need for a file viewing app before cause basic apps are all thats on my computer and files are just basic exts with the basic app on that just opens up everything readable format, nothing like coded info or anything. What was on those attachments I sent? Could a cover up be going on by the other user? An attempt to disguise something from me.I don't want my computer being used for something illegal or unethical. I will stop use of my computer by this other user to protect myself. Your thoughts and incites appreciated.:major:eek