Is your Downloaded theme in .zip format? Well then,this post is for you Guyz.

For PC Users:

• Download your Theme
• Go to Start->Control Panel
• Click Folder Option and Select View Tab

• Un-Check "Hide Extentions from known Fille Type"

• Click OK and Apply
• Now Go to your Theme and rename it to .nth (For Eg:mytheme.zip to mytheme.nth)

For Mobile Users:

• Download your Theme
• Download FileManager from Tinystudioz
• Open FileManager and select the Theme 
• Rename the theme form .zip to .nth (For Eg:mytheme.zip to mytheme.nth)

If this Tutorial doesnt seem to work,please let us know.