I really need some advice on this!
I've tried to use SkyDrive to share an Excel file simultaneously with my business partner and it will not work because it doesn't play nicely with his XP Pro nor with his Excel 2007. I have Excel 2010 and Windows 7; so no problems here.
I've just read about using SharePoint; but it seems that it would not work from a Web server but instead needs a Shared Network folder. Which I guess in our case means a VPN. Which I understand is hard to install. I was initially excited about the SharePoint approach because it says (in the last sentence) that it will work with any version of Excel. Here's the link: Share a workbook - Excel - Office.com
So, after a lot of time on this -- I'm batting zero.
Is there any other practical way we can share an Excel file?
I will sure apprecite all suggestions!