Description:
Japanese Chōonpu character "ー" should be oriented vertically in vertical texts. However, when I load an Excel file which includes a vertical cell with Japanese text containing this symbol, it is not rotated.

There are two ways to make LibreOffice display it rotated:
 - mark the cell as vertical in LibreOffice (initially the cell shows neither vertical not horizontal)
 - in Cell Format / Text Orientation, under the "Vertically Stacked" checkbox, additionally check "Asian Layout Mode"

However, both ways assume manual actions after the document is loaded, AND are not persisted when the document is saved as XSLX.






Steps to Reproduce:
1.Create a new spreadsheet, using LibreOffice Calc
2. Put "キョン君、電話ー" in a cell and mark it as Vertical. Note that the long vowel symbol displays vertically
3. Put "キョン君、電話ー" in another cell and format its text as "Vertically Stacked, Asian Layout Mode". Note that the long vowel symbol displays vertically
4. Save, using Excel 2007-365 format, then re-open in Calc


Actual Results:
In both vertical cells, the long vowel symbol displays horizontally, NOT OK

Expected Results:
In both vertical cells, the long vowel symbol displays vertically


Reproducible: Always


User Profile Reset: No

Additional Info:
Open the same document in MS Excel; the long vowel symbol displays vertically