Last resort - Extract thumbnails from DB

[mismionercz]

Hi, Is there some way to extract previews from the DB? My thumb.db in XNviewMP is 11GB.
I've been using XnViewMP for years and I'm satisfied. Now I have lost all the data on the external drive due to my mistake. Mac APFS encrypted volume accidentally formatted instead of a memory card. Unfortunately, the change to FAT and the secure format, together with encryption, ensured that data recovery no longer exists. I had projects, graphics and a family photo. Some previews would be a saving grace, despite the low resolution.
Is there some way to extract previews from the DB? My thumb.db in XNviewMP is 11GB. Please help

[XnTriq]

I'm very sorry to hear about the data loss, mismionercz

Pierre is the (sole) developer of XnView. Hopefully he can give you step-by-step instructions. But he probably won't reply before Monday. In the meantime, I'll try to find answers.

Do not start XnView MP before you've made a backup of its database.

• Where does XnView MP store its setting files on a Mac?
• XnViewMP Setup on Mac
• Export thumbnails or file path
• XnView w/High Sierra on a Mac
• How are thumbnails stored and accessed?
• XnView Multi Platform places thumbnail cache in config directory instead of cache directory
• Extract thumbnail from catalog.

[mismionercz]

Thank you very much for your effort. Yes, I looked up most of these threads on the forum. I also backed up the DB files so as not to affect them in any way. I regularly back up the entire XnViewMP configuration for years. I love the compatibility when I moved from Windows to Mac and I was able to move settings and export presets and stuff.
Unfortunately, I still can't get to previews despite the programs mentioned in other threads.

Thank you very much, I will wait for further instructions from the creator. Thank you for your time, you are great

[XnTriq]

Yes, let's wait for Pierre and hope for the best.

If everything fails:

• Batch export SQLite BLOB to image files without programming
• Investigation and Automating Extraction of Thumbnails Produced by Image viewers

[mismionercz]

Thanks for the effort, I've tried following the links but still can't get the previews.

[xnview]

there is no direct way to extract thumbnails from catalog, if you send me the .db, i can perhaps extract all

[ebertek]

Hi Pierre,
I'm sorry for the trouble, but may I ask you for the same favor, or an overview of how I could do this myself?
Thank you very much for your help!