OOXML mystery integer values

Celly

Board Regular
Joined
Jan 29, 2015
Messages
84
Office Version
  1. 2016
Platform
  1. Windows
Hello!

This may seem odd but I'm getting into the nitty gritty of Open Office XML (OOXML) and have a question. I'm looking at one of the sheet xml files under xl/worksheets/. I see a lot of churn on these "s" attributes on cell elements. Here is an XML fragment:

<sheetData>
<row r="3" spans="1:16" x14ac:dyDescent="0.25">
<c r="E3" s="286" t="s">
<v>839</v>
</c>
</row>
</sheetData>

So this is cell E3 which has a value of 839. I get that part, but what is the s="286" element? These "s" elements move up or down in small increments when a workbook is saved, even if no changes are made. I could sift through the OOXML specification but I'm not intimately familiar with it. Any ideas?
 

Excel Facts

Lock one reference in a formula
Need 1 part of a formula to always point to the same range? use $ signs: $V$2:$Z$99 will always point to V2:Z99, even after copying
So for posterity, the main source of the churn is in the <cellXfs> collection in xl/styles.xml which is a table of cell formatting styles. This table appears to get reordered when you save, which has a ripple effect on all of the cells which reference these entries by index.

I'm testing Excel 2015, perhaps they've improved this behavior in subsequent releases?
 
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