Open a word or RTF document with table doen't shown right

I don't understand the point of your post.

If you're trying to report a problem or "bug" with Pages, that is not the purpose of this user-to-user forum. You should leave feedback for the Pages team on this page.

I've not had a problem opening Word files with tables in Pages. If you're saying Word can't handle tables with merged cells, then don't use merged cells in files you are going to export as Word. Word & Pages must handle merged table cells differently, as I know both can do that. As far as RTF, Pages can open & export as RTF. Again, if you are going to export as RTF, don't use tables. Neither of these is a fault of Pages, just limitations of the formats/programs.

When it comes to rtf and tables, I am pretty sure it is a known problem, even though I cannot find the old thread on that subject. Anyhow, the only thing to do is to wait for the next version of Pages, and hope that it gets fixed.

Merged cells in Word is more surprising. I never heard of that problem. I both imported and exported Word documents with merged cells here, and it worked fine.

If you have a really complicated table, I guess that could cause problems in both applications. You could try simplifying it or splitting it in smaller bits.

Lycka till!

You do that outside Pages. System Preferences > International > Formats. (If you are not logged in in Swedish, check "Show all Regions".) And then select Swedish > Sweden.

Did you solve the merged cells problem?