[ubuntu] Problem opening .xlsx and .docx files in SAMBA

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http://ubuntuforums.org – Hi guys, My SAMBA File server is running fine but i noticed that when i open a file with an extension of .xlsx and .docx, it says that "Read only",, but no one is opening that file except me.. most of the post are outdated and not in Ubuntu Distro so im doubting to try... regards.. (Hardware)