Сurrently there is no option to export categories from Store Manager for VirtueMart, but we are working on the implementation of this possibility in the future.
Meantime you can use export product wizard and transfer your categories with store products at once.
Launch the Export/Import Product Wizard and choose the required operation.
Specify the path where your exported data will be listed - locally or on the FTP server. Click on the 'Next' button to continue exporting.
Set the fields delimiters on the second step of export or leave these settings as they are.
The next page includes Base date and time Formats and corresponding separators. They can be set by default if you use the appropriate button in this window.
On the Export Options step, you have an opportunity to specify what symbol serves as a separator between categories in category path.
'Select fields to export' step.
You should select the column with products' (name, ID or SKU) to be able to continue exporting and columns, relating to the Category fields in your store database, choose the button
to drop them to the right. Press 'Export' and you can see the data which were exported on the previous step.
Save export configuration directly in wizard or separately to a file to have an opportunity to use it for the next export processes.
If you choose 'Open result file' position you are able to see after export the file with exported data. Categories were exported as well: