https://community.esri.com/t5/arcgis-pro-questions/existing-arcgis-pro-projects-not-opening-in-arcgis/m-p/1223509#M61292 <P>I've had this issue and also wanted to throw out a suggestion that's worked for me. I occasionally have to reinstall the 2016 driver and restart my computer when existing projects don't open. It usually works after that. (ArcGIS Pro 3.0.2)</P> Wed, 19 Oct 2022 18:54:18 GMT Anonymous User 2022-10-19T18:54:18Z https://community.esri.com/t5/arcgis-pro-questions/existing-arcgis-pro-projects-not-opening-in-arcgis/m-p/1199464#M58182 <P>Sharing this information for those that cannot open existing ArcGIS Pro projects in ArcGIS Pro 3.0, and it may be due to a standalone table connection issue.</P><P>If your project points to an Excel datasheet or CSV file or other standalone data connection, the project may not open unless you update to the latest 2016 Access Database driver.&nbsp;<A href="https://www.microsoft.com/en-us/download/details.aspx?id=54920" target="_blank" rel="noopener">https://www.microsoft.com/en-us/download/details.aspx?id=54920</A></P><P>However, when attempting to install the 2016 Access driver you may find yourself in this situation where Windows will not allow you to install either the 64 bit version or 32 bit version (see link below).&nbsp;</P><UL><LI><A href="https://superuser.com/questions/1557350/how-to-resolve-you-cannot-install-the-32-64-bit-version-of-microsoft-access-da" target="_blank" rel="noopener">64 bit - How to resolve: "You cannot install the 32/64 bit version of Microsoft Access Database Engine because you currently have 64/32 bit Office"? - Super User</A></LI><LI>To resolve this you need run the executable through the Windows Command Prompt, as described in the link above. An example of the Command Prompt command below:<PRE>C:\Users\myuser\Downloads&gt;AccessDatabaseEngine_X64.exe /quiet</PRE></LI></UL> Thu, 04 Aug 2022 16:28:39 GMT https://community.esri.com/t5/arcgis-pro-questions/existing-arcgis-pro-projects-not-opening-in-arcgis/m-p/1199464#M58182 MapOfHome 2022-08-04T16:28:39Z https://community.esri.com/t5/arcgis-pro-questions/existing-arcgis-pro-projects-not-opening-in-arcgis/m-p/1223509#M61292 <P>I've had this issue and also wanted to throw out a suggestion that's worked for me. I occasionally have to reinstall the 2016 driver and restart my computer when existing projects don't open. It usually works after that. (ArcGIS Pro 3.0.2)</P> Wed, 19 Oct 2022 18:54:18 GMT https://community.esri.com/t5/arcgis-pro-questions/existing-arcgis-pro-projects-not-opening-in-arcgis/m-p/1223509#M61292 Anonymous User 2022-10-19T18:54:18Z