Make Export and Import reversible.

[rococtz]

I have been experimenting a bit with Exporting and Importing and my word translations and levels got a bit messed up because I didn't understand how columns are processed and in what order.

My expectation as a user (based on using and developing other apps that work with CSV export/import) is the following:

• I click EXPORT
• I open in Excel, make changes to the data
• Import the file I changed

Unfortunately, it doesn't work because the Export gives back columns in a different order than expected by the Import process.

Proposed solution: When you export, the CSV file has the columns in the exact same order expect in IMPORT. After the critical columns, append other columns that don't matter for import. In case the import process runs into columns that don't mean anything, just ignore them.