The Spreadsheet Library is designed to read and write Spreadsheet Documents. As of version 0.6.0, only Microsoft Excel compatible spreadsheets are supported. Spreadsheet is a combination/complete rewrite of the Spreadsheet::Excel Library by Daniel J. Berger and the ParseExcel Library by Hannes Wyss. Spreadsheet can read, write and modify Spreadsheet Documents. Alfred: firstname.lastname@example.org: I think it should be noted in the README file that the library doesn't recognize cell formats in Excel created documents, which results in Floats returned for any number.