OK. Well I can't be the only person with this problem and as such here is a temporary solution for any one in the same situation:
Go to the shopping portals > google
Here you should be able to view your data feed as a text file, right click and select "save as" and choose a simple file name, no spaces no special characters.
Now go to Excel or a similar editor, I am using Excel 2010 and will describe it through this, I don't know how well open office handles text files so if you know this works let people know!
Go to the "Data" tab and select "From Text". It will prompt you for the relevant data such as delimiter type, as standard this is "tab" for these data feeds. Follow this through and it should fingers cross create a spreadsheet from your text file.
At this point you can edit this file as any other batch edited file. For most peoples feeds and from what I have seen so far the most common reason is availability data at the moment, so simply add a new column header "availability" and the attribute type you will want to use is most likely "in stock" Now ensure you disable the automatic feed update, when the new 6.11 patch comes you should be able to go back to using an automatic update.
Now go into your Google Merchant Centre, select "Data Feed" and add new feed. Then select "manual" from the 2nd column and upload your file.
Your items should, given the usual wait with Google now be back online.
