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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_UNCONFIRMED "
title="UNCONFIRMED - Performance: Opening xlxs with many rows takes several minutes"
href="https://bugs.documentfoundation.org/show_bug.cgi?id=121094">121094</a>
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<th>Summary</th>
<td>Performance: Opening xlxs with many rows takes several minutes
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<th>Product</th>
<td>LibreOffice
</td>
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<th>Version</th>
<td>6.2.0.0.alpha1+ Master
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<th>Hardware</th>
<td>All
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<th>OS</th>
<td>All
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<th>Status</th>
<td>UNCONFIRMED
</td>
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<th>Keywords</th>
<td>perf
</td>
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<th>Severity</th>
<td>normal
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<th>Priority</th>
<td>medium
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<th>Component</th>
<td>Calc
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<th>Assignee</th>
<td>libreoffice-bugs@lists.freedesktop.org
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<th>Reporter</th>
<td>kelemeng@ubuntu.com
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<pre>Created <span class=""><a href="http://bugs.documentfoundation.org/attachment.cgi?id=146224" name="attach_146224" title="Example file from Excel with 800k rows">attachment 146224</a> <a href="http://bugs.documentfoundation.org/attachment.cgi?id=146224&action=edit" title="Example file from Excel with 800k rows">[details]</a></span>
Example file from Excel with 800k rows
Attached user-made xlsx has a few rows with actual data then 800k empty rows
that are actually saved. I have no idea how or why they made it so.
Opening this in Excel takes a few seconds, but in Calc it takes several minutes
with 100% processor use. Memory use jumps inside a range of a few megabytes, so
it does not run away.
It would be nice to improve performance in case of such "extreme" files.</pre>
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