UIDocumentInteractionController "invalid scheme (null)"

ios excel nsdata preview uidocumentinteraction

Try to use

// objCfile = [NSURL fileURLWithPath:filePath];// swiftfile = URL.init(fileURLWithPath: filePath)

instead of

//objCfile = [NSURL URLWithString:filePath];// swiftfile = URL.init(string: filePath)

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