When I try to import an HTML document into Calc, if the document have the same row 10 times, everything's ok. When the document have the same row 10 000 times, Calc show just 6750 rows. If the document have the same row 100 000 times, libreoffice crash.

Steps to reproduce:

---------------------TABLE HEADER--------------------
<table border=1>
<caption>INDICADORES</caption>
<tr>
<th>Code</th>
<th>Number</th>
<th>Deno</th>
<th>Level</th>
<th>Nature</th>
<th>Load</th>
<th>MetricUnit</th>
<th>Aprobed</th>
<th>PlanifLevel</th>
<th>Activated</th>
<th>WayAdqui</th>
<th>Parent</th>
<th>Price</th>
</tr>
------------------------END---------------------------

-----------------------TABLE BODY---------------------
<tr>
<td style="mso-number-format:'@';">68160000014</td>
<td></td>
<td>FUSIBLE</td>
<td>Surtido</td>
<td>Equipo</td>
<td>Comunicaciones</td>
<td>Uno</td>
<td>Aprobed</td>
<td>Si</td>
<td>Si</td>
<td></td>
<td></td>
<td>0.000000</td>
</tr>
-----------------------END----------------------------

Step 1: Put the content betwen "--TABLE HEADER--" and "--END--" in to a file "DocHeader.txt". Put the contet betwen "--TABLE BODY--" and "--END--" in to a file "DocBody.txt".

Step 2: Create a file with 10 rows "file1.xls".
cat DocHeader.txt > file1.xls
for ((i=0;i<10;i++)); do cat DocBody.txt >> file1.xls; done

Step 3: Open the file "file1.xls" with LibreOffice-Calc. Everything's OK.

Step 4: Create a file with 10 000 rows "file2.xls".
cat DocHeader.txt > file2.xls
for ((i=0;i<10000;i++)); do cat DocBody.txt >> file2.xls; done

Step 5: Open the file "file2.xls" with LibreOffice-Calc. Just 6700 rows are show.

Step 6: Create a file with 10 000 rows "file3.xls".
cat DocHeader.txt > file3.xls
for ((i=0;i<100000;i++)); do cat DocBody.txt >> file3.xls; done

Step 7: Open the file "file3.xls" with LibreOffice-Calc. LibreOffice crash.