Open a new Excel document and navigate to the Data tab. Each sheet will be saved to an independent CSV file with commas separating the columns and new lines (enters) separating the rows. This software offers a solution to users who want to convert one or more XLSX and XLS files into CSV format. While older xls files were binary in nature, xlsx spreadsheets are using somewhat altered XML scheme.
XLSX is the latest spreadsheet format used by Excel with adoption of XML formatting first used in Office 2000.
Files with xlsx extension are s used by Microsoft Excel for its workbooks (spreadsheets) in Office Open XML format. 'Optionally Edit the Spreadsheet = 'Import. Private workbook As WorkBook = WorkBook.Load('test.xls'). 'Import any XLSX,XLS, CSV or TSV Spreadsheet.