Most ApeksOPS data types can be imported from Excel.  To get started, enter some data (e.g. a supplier or two), then go to ApeksOPS > Settings > Utilities > Export.  Choose the type of data, then click “Start Export”.  This will download an Excel spreadsheet, formatted exactly as you will need to import data.  Change and add the rows you need, in Excel, then go to ApeksOPS > Settings > Utilities > Import to import your changes and additions.