cells source code：
src.zip (1.6 KB)
origin cells:
140-测试.xls.zip (36.5 KB)
before converted：
image.jpg (195.5 KB)
after converted：
image.jpg (162.5 KB)
Please have a check.
@hucq_landray_com_cn
By using sample files and code for testing, we can reproduce the issue. I found that the left and bottom borders were lost after converting the file to HTML.
We have opened the following new ticket(s) in our internal issue tracking system and will deliver their fixes according to the terms mentioned in Free Support Policies.
Issue ID(s): CELLSJAVA-45674
You can obtain Paid Support Services if you need support on a priority basis, along with the direct access to our Paid Support management team.
This is to inform you that your issue has been resolved. The fix will be included in an upcoming release (Aspose.Cells v23.11) that we plan to release in the first half of November2023. You will be notified when the next version is released.
Here is the result after fix for your reference: CELLSJAVA-45674.zip (33.7 KB)
The issues you have found earlier (filed as CELLSJAVA-45674) have been fixed in Aspose.Cells for Java 23.11.