CBR is a comic book achieves file extension. It contains comics in compressed format. It uses the data compression technique of RAR archive files. CBR is a modification of RAR file. It can also be opened with WinRAR achieve viewer. The basic difference between RAR and CBR is CBR can be opened on comic book viewing software also.
RTF is a document file that supports several text formatting options. It is a proprietary file format of Microsoft. One of the drawbacks of RTF format is that it cannot contain or format any data, images, and diagrams other than texts. It can format the texts only.
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