@gustavogopera If you can see the URLs in a session file, you can load it with http://lsauer.net/chrome-session-restore/# to get the links out of it.
On the site, click the badge at the left of the address field, goto "site settings" and allow popups and redirects.
Then, at the bottom of the page, set the max to 50. Then, click "choose file" and point it to your session_xxxx file. Then on the bottom bar on the page, click recently closed (don't worry about the name "recently closed") and then click the top entry to open all the URLs in tabs.
If you need a max higher then 50, right click the max field and choose "inspect element". Then, on the Elements tab in the developer tools, you can right-click on max="50" on the max tabs input element, choose "edit attribute" and change the number to something higher. Then, hit ctrl + enter to apply. Then, you can increment the max to the new high, choose your sessions file again and then open all the tabs.