Hello @asdadaewrgh,
What version of Document Server are you using?
Also, please provide an original file that contains the dotted lines (you may remove or replace any confidential information if necessary).
Hi this is old xls file that onlyoffice open it as doc
file
34b2d8f3-60cc-4b15-b365-1f152b21d5bc.xls (171.2 KB)
We have reproduced the issue and are analyzing it, please wait
We’ve added your request to an existing bug in our tracker. We will inform you as soon as the version with the fix is released