Install Kiwix 0.9- from kiwix-0.9-rc2-installer.exe
Download the zim file - wikipedia_as_all_07_2013.zim and couple of files in other languages to your local machine say Desktop.
Launch Kiwix and open the above files downloaded in Step 2
Now move the files from Desktop to a different folder after closing the kiwix app.
Re-launch kiwix
Actual behavior:
The following error pops-up:
Unable to load . Are you sure this is a zim file? 'Ok' Button.
Desired Behavior:
Ideally the zim file is missing in the previous location referenced. So the error file should be related. eg. 'Could not find the file ' rather than the current error message that suggests that zim file is corrupted.
vinithrasp
commented
10 years ago 
Environment: OS: Win 7 64-bit Steps to reproduce:
Actual behavior: The following error pops-up: Unable to load. Are you sure this is a zim file? 'Ok' Button.
Desired Behavior: Ideally the zim file is missing in the previous location referenced. So the error file should be related. eg. 'Could not find the file' rather than the current error message that suggests that zim file is corrupted.
PFA screenshot of the current error message.