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how to resolve failed to connect to database an underlying database error occurred class not registered

JuanitaOwens

I am trying to add an excel table to my map. I get the message "Failed to connect to database. An underlying database error occurred. Class not registered"

What do I need to do to resolve this error?

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Accepted answers

George_Thompson

Take a look at this article: Error: Failed to connect to database. An underlying database error occurred. Class not registered

https://community.esri.com/groups/technical-support?sr=search&searchId=dd3ef642-c507-4fb1-8c2a-e68a4b5b8e6f&searchIndex=0

All comments

RhondaParrish

Yes, Thanks Bob! I just also downloaded the 2007 version and it worked like a charm, after attempting the newer versions that would not work due to me having 64 bit Microsfot Office products installed already.

RobertHarmon

Jared,

I just tried to install the 32-bit MS Access db engine 2010 driver and I got an error that I already had 64-bit Office installed. I installed the 64-bit driver and still get the original "Failed to connect..." error when trying to open a .xlsx file.

Any ideas?

Bob

RobertHarmon

Hi Jared,

My instance of MS Office was recently upgraded from MS Office 2010 (32-bit) to 2013 (64-bit). I can open .mdb and .xls files in Catalog, but I get the "Failed to connect..." error when I attempt to open. xlsx files.

I'll try the link above and let you know how it goes.

Bob

Jared_Motuz

Hi Robert,

The previous article does appear to have been removed. If you are receiving this error it may be an indication that the machine being used does not have Microsoft Office installed and will require a driver so that ArcGIS Desktop can view the files.

Please attempt to download the 32-bit Microsoft Access Database Engine 2010 Redistributable Driver

Download Microsoft Access Database Engine 2010 Redistributable from Official Microsoft Download Center

*The 2007 Office System Driver which was previously the solution has been deprecated by Microsoft and is no longer available for download.

RobertHarmon

The page appears to have moved or been dropped for "Error: Failed to connect to database. An underlying database error occurred. Class not registered". Does anybody have the new location?

NIRPCNIRPC

I had the same problem and it worked. Although the driver is supposed to work with 2007 Microsoft Office systems, it solves the problem even if you have Microsoft Office 2016