You can easily bring content from spreadsheets into Ditto by importing your CSV files. Imported content will get created as components in your team's component library.
To get started, head to your workspace's component library and click "New Component," then "Import from string file."

If you're looking to import content from an Excel spreadsheet, go to File > Save As, and choose the CSV format. If you're looking to import from a Google Sheet, go to File > Download > Comma Separated Values (.csv).
After uploading your CSV file, you’ll move to the "mapping" stage of the import.
Each row of your spreadsheet (besides the header row) will get created as its own component in Ditto. During this step, you’ll choose which column(s) Ditto should pull data from for each attribute of a component:

Once you finish mapping, you’ll get to preview all the components that will be created, as well as deselect any you’d like to exclude. The imported components will function just the same as any other Ditto components.
