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.

Apache OpenOffice Launch OpenOffice and press "Ctrl-O." Select the "XLS" file using the integrated file browser. Click "Open" to open the XLS in OpenOffice.

Users of open-source office suites like Lotus Symphony and OpenOffice know that those programs can open Microsoft Office documents, but what if you're an Office user who needs to open an Open ...

QUESTION:A while back, I installed a shareware program called 602 pc suite 2000. The program must have altered the way I log into Windows Explorer to read my Microsoft Excel files. When I do so, I ...

If you cannot open an Excel file and see Excel cannot open the file because the file format or extension is not valid error, see this post.