I need to generate a spreadsheet file on iOS that is readable both by Excel and Numbers. CSV file is not sufficient as it does not allow multiple sheets and/or formatting.
Which format would work the best? And is there a library/framework that I could use to generate a file in that format?
Create a Google docs spreadsheet the Google Data APIs Objective-C Client Library. Then you can import that into Excel/Numbers.
来源：https://stackoverflow.com/questions/5804834/generate-a-spreadsheet-file-on-ios-that-is-readable-both-by-excel-and-numbers