Cannot read xlsx with inline string.

[julianko13]

82A404 (4).xlsx
I got the file from a web supporting xlsx format export. I have checked inside the file that there is no sharingString.xml there. When I tried inLineString.text, I got nil. The file has a structure like this:

<row r="1" customHeight="1" ht="25">
  <c r="A1" s="1" t="inlineStr"><is><r>
<t xml:space="preserve">總筆數: 54</t></r> 

Not sure if this is standard formatting, but all apps I know that read xlsx parse it correctly.