It saves files in open document format. This means that work saved in OpenOffice can be read by other software packages.
You can not. You need to save the files from Office 2007 in compatibility mode if you want to open the files with an older version of Office.
You need to open the files with the appropriate Office 2007 program and save in compatibility mode. You usually cannot open Office 2007 files with Office 2003.
You would need to use the 'save as' command in OpenOffice and save the file as MS Office format.
Usually there is no need to convert, since Open Office can read excel files (except Open Office probably will have problems with macros). If you have Excel 2007, then save the file in Office 2003 compatibility mode.
Yes, You can use MS Office 2013 to read and save MS office 2000 files. You can use the Microsoft Office Compatibility Pack to allow backward compatibility, so that previous versions of Office can open and save files in the new file format.
False ! Open Office Calc is quite happy to save files in .xls format !
Save your file as Excel xls format. Use the File-->Save As... menu and select the file type in the save dialog. For a video How to, see related links.
It saves files in 'open document' format - they should be able to be read by most other similar programs.
.doc files would automatically open with office 2007 if you want to save an office 2007 file as .doc, while saving choose the format as Outlook office 2003 format and it would save your file as .doc instead of the .docx that office 2007 gives
With a file open, go into the File menu and pick Save As and you can choose a different file type to save your document as.
Open Office will read Word files without any problems ! I used MS word for years before I encountered OpenOffice. Once I started using the new software, it read every document saved in MS office format !Open office can save documents either as open document format (the default) or as MS word if you choose it from the drop-down menu when you save it !
You mean run them at the same time? Sure, why not. I haven't used either in a while, but you can open files created in either suite with the other one, but you usually have to save the MS Office file using an older file format that Open Office can understand. I've done it before flawlessly. The only thing I've noticed is that the formatting might look slightly different in Open Office, but goes back to normal in MS Office. By now, the latest MS Office should be backwards compatible with Open Office, but read the documentation. Better yet, when you save a file in MS Office, save it as you would a normal file. Then save-as and choose the older file format, e.g. MS Office 2007. Open both up in Open Office, and see if you get a prompt. If they both open up fine, you're good to go. I don't think there are really any problems with Open Office files opening in MS Office. The open-source community is really good at making sure Open Office files can be read using MS.