I use Apache Open Office 3.4 running under Windows7 for spreadsheets and text documents. I recently purchased an iPad with iOS6. Apple recommends "Numbers" for viewing and editing spreadsheets and "Pages" for test documents. I can read the text documents, but Numbers will not open the Open Office spreadsheets. The documents are located on Google Drive, which I access using the "GDrive" App. Numbers will open the same spreadsheet when saved in Excel. Can anyone suggest an App to install on my iPad that will enable me to open OO Spreadsheets?