pd.ExcelFile：file包含浮点数列表，但列表是作为字符串导入的

I exported lists of floats to an excel file which i now want to import again as a dataframe. I get a 10x7 dataframe, which looks all good, except that all my lists are stored as one string each (which makes sense I guess, as excel doesn't know what lists are, right?). I'm using this code to import the file:I exported lists of floats to an excel file whi