Troubleshooting
Problem
User opens Excel link spreadsheet file (XLSX file). User clicks 'F9' to run/refresh the report.
An error appears.
Problem only affects some spreadsheets.
- Specifically, it affects those which have Enhanced Reporting Optimisation (ERO - sometimes known as Optimise2) enabled.
Symptom

System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> System.IO.IOException: The file exists.
at Cognos.Controller.Proxy.CCRWS.ExcelLinkB_FetchValuesBulk(String sGuid, String sKeys, String sMcurr, Boolean bLocLang,...
<...>
<...>
Document Location
Worldwide
[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SS9S6B","label":"IBM Cognos Controller"},"Component":"","Platform":[{"code":"PF033","label":"Windows"}],"Version":"10.2.1","Edition":"","Line of Business":{"code":"LOB76","label":"Data Platform"}},{"Product":{"code":"SSMRTZ","label":"IBM Cognos Controller on Cloud"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":" ","Platform":[{"code":"","label":""}],"Version":"","Edition":"","Line of Business":{"code":"LOB76","label":"Data Platform"}}]
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Document Information
Modified date:
09 May 2025
UID
ibm10885254