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How to Fix Excel Data Streamer Installation Error 0x8007007E
Question details
The user needs to resolve an installation failure when trying to add the Data Streamer add-in to Microsoft Excel.
- Product
- Microsoft Excel
- Device & OS
- not provided
- Scenario
- Attempting to install or enable the Data Streamer COM add-in using setup.exe or the Excel options menu.
- Observed behavior
- Excel 2016 fails to display Data Streamer in COM Add-ins, and running the setup file returns a general installer error referencing Data Streamer.vsto with error code 0x8007007E.
Before troubleshooting, ensure you have an active Microsoft 365 desktop subscription, as the Data Streamer add-in is not supported on older standalone versions like Excel 2016.
Verify Microsoft 365 Version Compatibility
Data Streamer requires a Microsoft 365 desktop subscription. Upgrading from Excel 2016 to a supported version is the most common fix for this error.
Error 0x8007007E often occurs when the host application lacks the necessary features to support the VSTO add-in. Data Streamer is included exclusively with Microsoft 365 desktop Excel (version 1902 or later).
Launch Microsoft Excel, click on 'File' in the top-left corner, and select 'Account' from the bottom of the left-hand menu.
Under 'Product Information', verify that your license says 'Subscription Product: Microsoft 365'. If it says Excel 2016, you will need to upgrade your Office suite.
If you are on a compatible version, go to File > Options > Add-ins. Select 'COM Add-ins' from the Manage drop-down, click 'Go', check 'Microsoft Data Streamer for Excel', and click 'OK'.
Run an Online Repair for Microsoft Office
If you are using a compatible Microsoft 365 version but still face error 0x8007007E, repairing the Office installation can fix corrupted or missing dependency files.
Temporarily Disable Security Software
Third-party antivirus programs can sometimes incorrectly flag or block the installation of .vsto files, resulting in an installation error.
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Frequently Asked Questions
Why is Data Streamer missing from Excel 2016 COM Add-ins?
The Data Streamer add-in is explicitly designed for Microsoft 365 desktop versions (1902 or later). It is not supported and will not appear in standalone perpetual versions like Excel 2016 or 2019.
What does error code 0x8007007E mean in Excel?
Error code 0x8007007E generally translates to 'The specified module could not be found'. In the context of Excel add-ins, it means the system is missing necessary core components or framework files required to load the .vsto file.
How do I enable the Data Streamer add-in once my version is updated?
Open Excel and go to File > Options > Add-ins. At the bottom of the window next to 'Manage', select 'COM Add-ins' from the dropdown list and click 'Go'. Check the box for 'Microsoft Data Streamer for Excel' and click 'OK'.
