KB33597: Error "xxx is not a valid Single File Web Page" appears when trying to open an Excel file generated by using the export to excel with formatting option from MicroStrategy Web 9.x

SYMPTOM:
When trying to open a file created by exporting to Excel with formatting from Strategy Web 9.x following error message appears:
 

 
Sample Code/Error
'report_name' is not a valid Single File Web Page.
 
The issue can be also seen in one of following ways:

• Exporting completes without any error message, but the excel file is blank.
• Exporting completes without any error message, but the data is truncated.
• Exporting completes without any error message, but the formatting is lost.

Exporting to PDF may also fail.  

• Exporting completes without any error, but the PDF file is found blank.
• When opening PDF file, this message appears:
   
  

The file is damaged and could not be repaired.

• Database History List messaging is selected.
• History List tables are stored in DB2.
• "Automatic" option is selected in Web Preference > Project Configuration > History List > Add reports and documents to my History List: 

This issue does not affect the following export formats:

• Export to Excel with formatting from Desktop
• Export to Excel without formatting
• Export to HTML
• Export to Plain text 

ACTION:
This issue has been addressed in Strategy 9.0.2. Upgrade to this version to take advantage of the fix.
 
WORKAROUND
Configure the History List tables in other DBMS or re-create the Server Definition to select File based History List option. For more information about this option, please refer to:
 
KB30242 - Ways to transition from Strategy 8.x format History List to Strategy 9.x format History List 
KB20508 - How to set up and configure a Database Based History List Repository in Strategy 9.x
 
Contact Strategy Technical Support if the workarounds provided are not satisfactory.