How to Transfer Excel Sheets to Open Office. In addition to opening its own native .ODF file format, OpenOffice Calc can also open worksheets from other spreadsheet software such as Excel.

Convert OpenOffice.org Calc spreadsheets into a Microsoft Excel file to take advantage of Excel's built-in tools. OpenOffice.org spreadsheets default to a .xsc file extension, which certain ...

OpenOffice 4.0 has a single installer that adds most of the Windows components you need and walks you through making it the default software for Word, Excel and PowerPoint files.