This is where CSV(text only file) and the database file can be imported and exported. There are two options for importing/exporting a file.
Dropbox
This option allows you to import/export your files from the dropbox webserver. You must create a free account to do so.
"Full Access" is provided for longtime users of BC. Dropbox did not originally provide applications a way to segregate their access to a particular folder and you had to grant complete access to your Dropbox account to use it. Those original users transferred data to a BookCrawler directory in their account. Since there is now a way to only grant access to an application folder, you no longer need to do this. Only turn on full access if you need to continue to access the BookCrawler directory under your main account. Just be sure that each device uses the same authorization mode otherwise you will not be able to locate your previous backup when you try to restore.
Select the "Link" button to create and/or enter your account information. Once you have successfully logged in, a "BookCrawler" directory will be created for storing and retrieving your book crawler files. (Full access -> /BookCrawler, regular access /Apps/BookCrawler)
Select "Backup" to upload/backup your file to dropbox and, conversely, "Restore" to download/restore the file to the Book Crawler application. Restoring your database file will replace your current database, but importing the CSV file will just edit your database.
The restore button expects to find your database (DB) file under the same name as your currently loaded database file and the import CSV file under "Crawler.csv". You can select an alternate file to load by pressing:
Files can be directly uploaded through your dropbox account via the dropbox website or the dropbox application.
You can use dropbox to share your database with the developer should a problem arise.
Press Email to attach your database and CSV files to an email. Your DB(sqlite) file will not be attached to the email if it is larger than 7MB. In that case, you will need to use one of the two methods suggested above. Both the CSV and sqlite files can be imported into Book Crawler via the email app on your device. Select the sqlite or CSV file from the email attachment and the device will offer the choice to "Open in Book Crawler".