Exception when reading phonetic text
*Created originally on Bitbucket by [CharlieC](https://bitbucket.org/%7B32d660d5-f934-4ce5-a7b0-52750378fae1%7D/)*
openpyxl raises ValueErrors when reading sharedStrings.xml that contains phonetic text.
The problem is caused by incorrect descriptors for optional fields and the wrong descriptor for phonetic text run.
*Attachments:* [D01.xlsx](/uploads/ff0f11dfb023028f518d29906b1b3277/D01.xlsx)
issue