https://community.blueprism.com/t5/Product-Forum/OleDB-Excel-connection-hangs-with-no-exception-thrown/m-p/63319#M16278 Hi John, Thanks for your response. We resolved this issue. For benefit of anyone else, I want to share the root cause. It turns out that a Windows update for ""Skype for Business 2016"" caused the Office 2010 OleDB driver to start failing. When we uninstalled this Windows update, it started working MK Fri, 16 Mar 2018 07:31:00 GMT MuraliKumar 2018-03-16T07:31:00Z https://community.blueprism.com/t5/Product-Forum/OleDB-Excel-connection-hangs-with-no-exception-thrown/m-p/63317#M16276 Hi, We have been successfully querying data from a Excel (XLSX) file using OleDB via the "Provider=Microsoft.ACE.OLEDB.12.0" driver. This has been working fine until last Friday when suddenly it has started failing. When the control reaches the OleDB open connection stage, the process just hangs indefinitely without throwing any exception. Has anyone else faced such issues with OleDB when it suddenly stops working? Any hints or tips on how to resolve this? We have already done a Repair/Reinstall of Microsoft Office on this machine, but it still does not work. Thanks MK Tue, 13 Mar 2018 10:41:00 GMT https://community.blueprism.com/t5/Product-Forum/OleDB-Excel-connection-hangs-with-no-exception-thrown/m-p/63317#M16276 MuraliKumar 2018-03-13T10:41:00Z https://community.blueprism.com/t5/Product-Forum/OleDB-Excel-connection-hangs-with-no-exception-thrown/m-p/63318#M16277 Something must have changed if it worked before. If the BP logic is the same, then the target file must be different somehow. Possibly the machine drivers have changed, but I guess this is unlikely. Tue, 13 Mar 2018 13:15:00 GMT https://community.blueprism.com/t5/Product-Forum/OleDB-Excel-connection-hangs-with-no-exception-thrown/m-p/63318#M16277 John__Carter 2018-03-13T13:15:00Z https://community.blueprism.com/t5/Product-Forum/OleDB-Excel-connection-hangs-with-no-exception-thrown/m-p/63319#M16278 Hi John, Thanks for your response. We resolved this issue. For benefit of anyone else, I want to share the root cause. It turns out that a Windows update for ""Skype for Business 2016"" caused the Office 2010 OleDB driver to start failing. When we uninstalled this Windows update, it started working MK Fri, 16 Mar 2018 07:31:00 GMT https://community.blueprism.com/t5/Product-Forum/OleDB-Excel-connection-hangs-with-no-exception-thrown/m-p/63319#M16278 MuraliKumar 2018-03-16T07:31:00Z