Hi Sooraj,
Does this issue happen in other Office programs?
Does this issue only happen to Chinese characters/symbols? Do you mean the Chinese characters/symbols became unreadable when you opened it?
Based on my knowledge, this issue always happens due to a wrong encoding standard. We may try the following steps:
1. Open the Word document, click File > Options > Advanced.
2. Scroll to the General section, and then select the
Confirm file format conversion on open check box.
3. Close and then reopen the file.
4. In the Convert File dialog box, select Encoded Text.
5. In the File Conversion dialog box, select Other encoding, and then select UTF-8.
Please let me know if this works.
Regards,
Steve Fan
TechNet Community Support