Support importing files from computer 4. Support importing files from iCloud 5. Optimize iPad interface 5. Support word, excel, ppt 6. Support zip, rar, 7z, tar and other compression formats 7. Support playback of various audio and video formats (flv/mp4/mov/wmv/rm/mkv/aac/mp3/wma/wav, etc.) 8. Support folder management 9. Support jpg, jpeg, png, heic 10. Support pdf 11. Support srt, aas, ssa 12. Support RTF 13. Support .csv .numbers 14. Support gif 15. Support .sh .m .c .cpp More formats are still being developed