Excel Charts should be translatable

[Former user]

Original issue 374 created by mrh... on 2013-10-24T10:22:42.000Z:

Is there any rationale behind why Excel charts are not supported by OKAPI?

[Former user]

Comment 1. originally posted by @ysavourel on 2013-10-24T12:05:47.000Z:

[Former user]

Comment 2. originally posted by @ysavourel on 2013-10-29T02:35:00.000Z:

Charts seems to be supported in docx but not xlsx.
See http://groups.yahoo.com/neo/groups/okapitools/conversations/messages/3999

[Former user]

Comment 3. originally posted by @ysavourel on 2013-10-29T02:35:27.000Z:

[Former user]

Comment 4. originally posted by @ysavourel on 2015-03-25T19:03:51.000Z:

Assigning a sample.

Translatable element:
* title ("This is the chart")
* series names ("Time", "Value")

The X-axis label is encoded in a very strange way.

[Chase Tingley]

Duplicated by issue #503, which also covers PPTX.