Excel cannot access BloombergUI.xla. The document may be read-only or encrypted.

Excel cannot access BloombergUI.xla

Issue Description:

When you launch Microsoft Excel 2016, you get below error message:

‘BloombergUI.xla’ cannot be accessed. The file may be corrupted, located on a server that is not responding, or read-only.

Excel cannot access ‘BloombergUI.xla’. The document may be read-only or encrypted.

Excel cannot access BloombergUI.xla
BloombergUI.xla' cannot be accessed. The file may be corrupted, located on a server that is not responding, or read-only.

When you open Excel > Bloomberg tab and click on refresh button, you will get the below error pop-up.

An error occurred while trying to resolve a Bloomberg ribbon item

Troubleshooting Steps

Follow below steps to fix this issue:

  • Make sure C:\blp and its subfolders are excluded from antivirus scanning. Exclude it from the antivirus product you have installed on your device. For creating exclusions in defender via Intune, follow this guide: Create Defender Antivirus Exclusions using Intune. You can also use below PowerShell command to exclude C:\blp folder from defender AV scanning.
Add-MpPreference -ExclusionPath "C:\blp"
  • If you are using SentinelOne antivirus solution, add the folder to exclusions in Interoperability mode as shown below:
Exclude C:\blp from SentinelOne
  • Go to the Bloomberg installation folder c:\blp\Wintrv and launch setpermissions.exe utility to fix permissions on Bloomberg folders and Bloomberg registry keys. Run this utility as an administrator.
Launch setpermission.exe for bloomberg
  • Click Next.
Fix permissions for Bloomberg app
  • Click Next.
Fix permissions for Bloomberg app
  • Click on Apply.
Fix permissions for Bloomberg app
Fix permissions for Bloomberg app
  • Click Finish.
Fix permissions for Bloomberg app
  • Click on OK.
Fix permissions for Bloomberg app

Next Steps

  • Click Start > Bloomberg folder > Install Office Add-Ins to add the Add-ins to the profile.
  • Search Bloomberg API Diagnostics in the Start menu and launch it. Start the diagnostics and check if there are any issues > fix the issues by clicking on Repair.
Bloomberg API Diagnostics
  • Repair has been completed now. Check and confirm if the issue has been resolved.
Bloomberg API Diagnostics Repair complete

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