Shared formulas not supported

[aopt]

Some formulas appear as empty strings. This is the case when Excel saves a worksheet using shared formulas.

Example:

<sheetData>
  <row r="2" spans="4:6" ht="15.75" thickBot="1" x14ac:dyDescent="0.3"/>
  <row r="3" spans="4:6" ht="16.5" thickTop="1" thickBot="1" x14ac:dyDescent="0.3">
     <c r="D3" s="1"/><c r="E3" s="1"><v>10</v></c><c r="F3" s="1"><v>20</v></c>
  </row>
  <row r="4" spans="4:6" ht="16.5" thickTop="1" thickBot="1" x14ac:dyDescent="0.3">
     <c r="D4" s="1"><v>100</v></c><c r="E4" s="2"><f>D4+E3</f><v>110</v></c>
     <c r="F4" s="2"><f t="shared" ref="F4:F5" si="0">E4+F3</f><v>130</v></c>
  </row>
  <row r="5" spans="4:6" ht="16.5" thickTop="1" thickBot="1" x14ac:dyDescent="0.3">
     <c r="D5" s="1"><v>200</v></c>
     <c r="E5" s="2"><f t="shared" ref="E5" si="1">D5+E4</f><v>310</v></c>
     <c r="F5" s="2"><f t="shared" si="0"/><v>440</v></c>
  </row>
  <row r="6" spans="4:6" ht="15.75" thickTop="1" x14ac:dyDescent="0.25"/>
</sheetData>