When you click Add/import board on Placker overview page, you will be asked how to proceed. One of the options is to import from Excel or other Spreadsheet software.
You can also click more on the top right corner and select import/update cards to add cards from a spreadsheet to an existing board.
The first step is to paste the spreadsheet content and select the destination board:
Then, set the format of date, number, effort and other attribute types. Make sure to have the correct date format, so it will be added correctly to your Placker board.
Next step is to match the name of the columns on your spreadsheet to the existing attributes on your placker board:
And that's it! In case any attribute was not imported correctly, review the formats to ensure they are in a compatible structure.