install excell 2003 alongside office 2010

hi
i have installed office 2010 and in excel i need to save files in wk4 file formate .. and excel 2010 is lacking this feature. whereas excell 2003 has this feature.

can i install excell 2003 alongside office 2010 ?
i need word/outlook/access/onenote/ in 2010 format . whereas excel in 2003.

what are its implications?

Are you aware that Microsoft will no longer support Office 2003 after April 8, 2014. So you will lose support & updates on Excel 2003, which could make it very vulnerable to virus attacks etc..

Is the wk4 file format used in saving Lotus 123 spreadsheets?. With the above in mind is there any way, you can change over to the fully Excel system, as it would seem you are getting forced into a corner & have to eventually change over.

Whether Excel 2003 will work alongside Office 2010 is something I don't know.

Ranger4 said:

Are you aware that Microsoft will no longer support Office 2003 after April 8, 2014. So you will lose support & updates on Excel 2003, which could make it very vulnerable to virus attacks etc..

Is the wk4 file format used in saving Lotus 123 spreadsheets?. With the above in mind is there any way, you can change over to the fully Excel system, as it would seem you are getting forced into a corner & have to eventually change over.

Whether Excel 2003 will work alongside Office 2010 is something I don't know.

The system that will be using excel is well protected. Secondly system upgrade is a bit long term issue which we will consider a bit later and certainly before April 2014.