A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
I get the same message on importing the file, but the data all seems to be present.
On expanding the Error Import column in the message I see it says
"Some data was imported as text"
I suspect it refers to, for example, the value 5 for the size property in row 241 which has been imported as a text value rather than as a number