First you need to add a Document Type . Here it is for the xls and xlsx document

Now you need to specify Import UTI or Export UTI

For more details, see How can I open my application in the "Open in ..." menu in iOS for a certain type of document?
For all System-DeclaredUniformTypeIdentifiers
Note To get the exact UTI for a specific file format:
NSArray *extensionArray = [NSArray arrayWithObjects:@"doc", @"docx", @"ppt", @"pptx", @"xls", @"xlsx",@"mp3",@"mp4",@"rft",@"rtf",@"pages",@"key",@"numbers",nil]; for (int i=0; i<[extensionArray count]; i++) { NSString *fileExtension = [extensionArray objectAtIndex:i]; NSString *utiString = (__bridge NSString *)UTTypeCreatePreferredIdentifierForTag(kUTTagClassFilenameExtension,(__bridge CFStringRef)fileExtension,NULL); NSLog(@"Extension: %@ UTI:%@",fileExtension,utiString); }
source share