In Exportizer, you have several ways to import the data into your target database:
Export data. Importing data works similarly to exporting, where the source and the target are swapped. So, just open your source database and then export data to the target database using Database target format.
Drag files from Windows Explorer. If your source data comes from files, just select the files in the Explorer and drag them into Exportizer with open target database.
Paste tabular data from the clipboard. If your clipboard contains some tabular data (e.g. copied from Excel etc), you can paste it into a table opened in Exportizer.