Table copied from MS Word into RichText isn't properly validated.
1. Open attached table example ("table test.docx").
2. Paste it as is into the RichText field (e.g. in the newly edited or created article).
3. Hit "Save" or "Publish".
The user is presented with an error:
This error is caused by the fact, that \n and attributes ezxhtml:width="116.95pt" entities aren't properly validated.