I keep doing my little research, and it seems that problems with memory in this module aren't new. This is a similar scenery reported as a bug in 2015

"Reading several odf files in a loop reusing the same variable exhausts all memory. Example:"

# Fails
#!/usr/bin/perl 
use OpenOffice::OODoc; 
$myfile = "test.odt";
while(1){my $var = odfDocument(file => $myfile)}
[download]

Why this happens? Do you think that adding an undef $value after the "foreach my $col" loop in my script would make a difference?. I didn't notice any improvement

This is interesting also, any experience with this other module?:

"For applications that make intensive spreadsheet processing, a switch to ODF::lpOD (more efficient and user-friendly than OpenOffice::OODoc) should be considered"