Always get this result "Succeed: 0 items, Skipped: 0 items, Failed: 0 items" when I running importing procedure, and no data is imported successfully. Why?
The most possible cause is the current site is not added to Trusted sites in the IE settings. A screen should be poped up when accessing this site:
Close IE ESC(Enhanced Security Configuration), or add the site to trusted sites, then the import would be working propely.
Steps to close IE ESC:
1. In SharePoint server, open Server Manager, then find Configure IE ESC under Security Information:
2. Select Off:
Applies for: SharePoint 2013, SharePoint 2010, SharePoint 2007