KB44065: "Unable to Read Document. an Error Occurred While Reading the Document." Error Message Appears when Opening an Excel Document on a Mobile Device Using Microstrategy Distribution Services 10.x

SYMPTOM
The following error occurs when trying to open an exported Excel document on a mobile device after distribution from Strategy 10.x:
 

Unable to Read Document.

An error occurred while reading the document.

CAUSE
This occurs because the version set for Excel exports is set to an older version of Excel causing a .xls extension versus a .xlsx extension.
 
ACTION
Update the user/project Web preferences to have report exports set to the correct Excel version.

1. In Strategy Web 9.3.0, go to the user preferences
2. Navigate to the Export Reports preferences
3. Look for the Excel Options section and set the Excel version to Excel 2007 or newer versions
   
4. Future e-mail subscriptions (Excel) will open properly on the mobile device