To add rows and columns between existing data in the Excel desktop app, you need to select and right-click a row or column ...

Spreadsheet files made in earlier versions of Excel are saved in the XLS ... like XLSX to CSV, XML, DOC, PDF, ODS, RTF, XLS, MDB, and even image and web file formats like JPG, PNG, and HTML.

to import Excel data into an Outlook appointment. Using .csv data and Outlook’s wizard, you can import lots of different data into different Outlook items. For a list of the most commonly used ...