You have the options of importing part or your whole Adwords account.
The Ad Groups will become projects, keywords will become Good keywords and negative keywords will become negative keywords (the rest of the information we don’t import).
To download an export file from Adwords.
1. Start your Adwords editor.
2. Press File => Export Spreadsheet (CSV) => Export Whole account or part of it.
3. Save the file.
Upload the export file from Adwords to the Keyword tool.
1. Click the Browse button.
2. Open you export file from Adword.
3. Click the import button.
Please allow some time for the tool to sort your Adwords account especially if it is large.