I found three useful methods, which you can use to import or export SharePoint Subsites. Method 1: Import/Export  SharePoint Subiste by using STSADM The STSADM tool commands : Import Command: STSADM -0 Import Export Command: STSADM -o Export. Backup Entire Site Collections : STSADM -o Backup Restore Entire Collection: STSADM -o Restore

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