About thumbnail and preview for archives

Ask for help and post your question on how to use XnView MP.

Moderator: xnview

User avatar
oCeaN_FunK
Posts: 1
Joined: Sun Feb 15, 2026 11:52 am

About thumbnail and preview for archives

Post by oCeaN_FunK »

I noticed some behaviors which confused me:
① When I open a newly installed XnView MP instance, a few of the archive files containing pictures would be shown in the browser with a thumbnail, and these files would also give a preview when being selected.
② After some time, the thumbnail of archives would disappear, and all archive files would be shown with only icons, yet the few that were mentioned in ① would still give a preview when being selected.
I also noticed that in ‘Custom filter' settings, there is no checkbox of 'Show as Thumbnail' for archive files, so my question is:
1. Is thumbnail and preview intended to be surpported for archive files?
2. If so, why does them only work for part of the files, and why would them fail after a while?