You can use this command to fix individual holes in your mesh model. Once all holes are identified, you can select a hole, preview the fix and then apply it to the mesh. A hole fix for this example is shown below.
Manual Holes Fix
To Fix your Mesh Automatically: This command requires you to fix holes in your mesh manually (i.e., one at a time). If your mesh has many holes, gaps between edges and/or improperly oriented facets, you should try using either the Stitch & Close or Auto Fix command. You can also use the Diagnose tool to fix other irregularities such as Short Edges, Large Angles, etc.
The mesh is evaluated and all detected holes are numbered and listed. Select a hole from the and it will highlight on the mesh. Note: If you double-left-click on a hole in the list, it will be oriented for displayed on the graphics screen.
Using this command will change the shape of your facet model! Experimentation with the methods and options listed above is advised until you understand and are satisfied with your results.
You can use this command to fix individual holes in your mesh model. Once all holes are identified, you can select a hole, preview the fix and then apply it to the mesh. A hole fix for this example is shown below.
To Fix your Mesh Automatically: This command requires you to fix holes in your mesh manually (i.e., one at a time). If your mesh has many holes, gaps between edges and/or improperly oriented facets, you should try using either the 
or 
Using this command will change the shape of your facet model! Experimentation with the methods and options listed above is advised until you understand and are satisfied with your results.