I get how to do that. I can be a little more specific in the question I have.
Now that I have extracted the files from my zipped file, how do I import the encrypted geodatabase files and index files into an empty file geodatabase?
the gdbindex, gdbtable, gdbtablx, etc. files.
I have have never emailed a zipped up feature class before. I have zipped it up but when you click on it in Windows Explorer you get all these table files and index files. How can you convert those files back to a feature class so I can import them back into a file geodatabase.
You need to use the ArcGIS tools to get those files into the file geodatabase correctly.
Here is some details on how the overall process looks: Copy feature datasets, feature classes, and tables to a geodatabase—Geodatabases | ArcGIS Desktop
You can look at this tool; Feature Class to Feature Class—Conversion toolbox | ArcGIS Desktop
How did you originally zip up the feature classes? They exist within a folder that represents a geodatabase with the general files. If you zipped all the files within a geodatabase folder, extract them all and make sure the folder name matches the old geodatabase. If you zipped only certain files within the geodatabase folder...you may be out of luck.
I zipped up every file within the .gdb file in Windows Explorer.
I was able to talk to someone yesterday who told me you have to include the .gdb file in the zipped file for it to work, which I didn't
You cannot "touch" the contents in side the "whatevername.gdb" folder. You have to zip/unzip at the top folder level.
You may want to contact Esri Technical Support to have them help you this process.