End user
· Yellow Dog Inventory 2026
WHY IT'S IMPORTANT
Yellow Dog
Inventory uses your local Microsoft Office installation to export reports and
documents to Excel. When that connection fails, the export stops and an error
appears. This article covers the most common cause and a repair you or your IT
team can run.
ISSUE
When you export
to Excel, an error appears that begins:
Unable
to cast COM object of type ‘Microsoft.Office.Interop.Excel.ApplicationClass’…
The export does
not complete.
CAUSE
This usually
points to a problem with the local Microsoft Office installation, in one of two
forms:
• Your Microsoft Office suite is out of date.
• A previous Windows installation left behind
registry keys that a Windows 10 install did not clear.
TROUBLESHOOTING
Start by making
sure Microsoft Office is up to date. If it is, repair the Office installation,
which resolves the registry-key problem. A Quick
Repair does not require an internet connection and keeps your
settings.
|
Note: Clearing registry keys and repairing Office
is typically handled by your onsite IT team. Involve them if you are unsure
or do not have the access to make these changes.
|
Repair
Microsoft Office (Windows 11)
1. Open Settings
from the Start menu, or press Windows + I.
2. Go to Apps
> Installed apps.
3. Find your Microsoft application in the list,
such as Microsoft 365 or Microsoft Office.
4. Select the three-dot menu (…) next to it, then select Modify. If prompted by User Account Control,
select Yes.
5. Select Quick
Repair, then Repair, and
follow the onscreen instructions. Quick Repair runs offline and keeps your
settings.
6. After the repair finishes, try exporting to
Excel in Yellow Dog Inventory again.
7. If the error continues, repeat the steps and
select Online Repair instead. Online
Repair is more thorough and requires an internet connection.
|
Older versions: Office 2019, Office
2021, and earlier perpetual-license versions may not appear under Installed
apps. In that case, open Control Panel > Programs > Programs and
Features, select your Office installation, and choose Change to reach the
same Quick Repair and Online Repair options.
|
VERIFICATION STEPS
1. Run the export that previously failed.
2. Confirm the file opens in Excel without the
COM object error.
WHEN TO CONTACT SUPPORT
Contact Yellow Dog Support if:
• Microsoft Office is up to date and a Quick
Repair does not resolve the error.
• You do not have the access needed to repair
Office or edit registry keys, and onsite IT is unavailable.
• The error continues after IT has repaired Office
and cleared old registry keys.
Phone: 757-663-7514
Support hours: Monday–Friday, 9:00 a.m.–8:00
p.m. EST
Emergency support (available 24/7): 757-663-7514,
Option 1
RELATED ARTICLES
Last reviewed: June 2026
· Applies to: Yellow Dog
Inventory 2026