How to associate CSV file to my app in iOS 7 - ios

Question

Good day, everyone.
I followed these two tutorials line by line, try to associate my app to the csv file (email app attachment), but I after I added these down below changes to my app's plist file, then build my app and run it my device (iPhone 4, iOS 7.0.4), nothing happens, I mean when I clicked on the .csv file in the email, my app still does not show up in the open-in available application list, I just don't know where I did wrong, or iOS 7 has different way doing this?
http://blog.spritebandits.com/2011/12/14/importing-csv-data-file-into-an-ios-app-via-email-attachment/
http://www.raywenderlich.com/1980/email-tutorial-for-ios-how-to-import-and-export-app-data-via-email-in-your-ios-app
this is what my plist changes (the new entries added followed by the tutorial) looks like:
here's the app setting screen:
and here's the xml version:
<key>CFBundleDocumentTypes</key>
<array>
<dict>
<key>CFBundleTypeName</key>
<string>CSV Document</string>
<key>LSHandlerRank</key>
<string>Owner</string>
<key>CFBundleTypeRole</key>
<string>Viewer</string>
<key>LSItemContentTypes</key>
<array>
<string></string>
</array>
</dict>
</array>
<key>UTExportedTypeDeclarations</key>
<array>
<dict>
<key>UTTypeDescription</key>
<string>CSV Document</string>
<key>UTTypeConformsTo</key>
<array>
<string>public.data</string>
</array>
<key>UTTypeIdentifier</key>
<string>Damian-s.${PRODUCT_NAME:rfc1034identifier}</string>
<key>UTTypeTagSpecification</key>
<dict>
<key>public.filename-extension</key>
<string>csv</string>
<key>public.mime-type</key>
<string>application/inventorytodo</string>
</dict>
</dict>
</array>

Answer 1

You're missing the UTI type in your CFBundleDocumentTypes definition:
<key>CFBundleDocumentTypes</key>
<array>
<dict>
<key>CFBundleTypeName</key>
<string>CSV Document</string>
<key>LSHandlerRank</key>
<string>Owner</string>
<key>CFBundleTypeRole</key>
<string>Viewer</string>
<key>LSItemContentTypes</key>
<array>
<string></string>
</array>
</dict>
</array>
should be:
<key>CFBundleDocumentTypes</key>
<array>
<dict>
<key>CFBundleTypeName</key>
<string>CSV Document</string>
<key>LSHandlerRank</key>
<string>Owner</string>
<key>CFBundleTypeRole</key>
<string>Viewer</string>
<key>LSItemContentTypes</key>
<array>
<string>Damian-s.${PRODUCT_NAME:rfc1034identifier}</string>
</array>
</dict>
</array>