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To export your VM into OVA/OVF, hereĀ are theĀ simple steps to do that.
1 Go to your vCloud Director.
2. Select your vApp.
3. Right-click on vApp and select Add to Catalog. (Note: If it is okay to power off your vApp/VM first, then you can start Download vApp right away without adding to catalog)
4. If you don't have any catalogs, please create new one first on Catalog tab.
5. Provide name to vApp.
6. Wait until process is finish. You could monitor the process on Catalog tab > My Organization's Catalogs > vApp Templates
7. Once it done, right-click on vApp and select Download.