In this video, Navino Evans (Histropedia) will demonstrate how statements can be added to Wikidata on multiple data items by importing data from a Google Spreadsheet into the Quickstatements tool.
In this demo, Navino shows how the statement for gender (Property P21) can be added quickly to items for female Fellow of the Royal Society of Edinburgh.
Quickstatements tool -
https://tools.wmflabs.org/quickstatements/Wikidata -
https://www.wikidata.org/wiki/Wikidata:Main_Page