java - Manipulating and editing an excel file in android app/assets folder -


i'm developing app has excel data-base in assets folder. app retrieves data excel file that's preloaded app. thing file has updatable online server i.e. when press button called update database app retrieves data file online , edits excel file in assets folder.

problem editing file in assets folder changes app's signature , makes unusable/non-executable. there way around it? sandbox file i'm not sure how works , android's openfileoutput(); seems work raw data rather excel sheets.

question is there way around problem? want able edit excel database online service without making android app's signature void. thanks! ps: i'm newbie need can get.

is there way around it?

copy file internal storage, edit copy.


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