cannot load sff (Structured Fax Format) files

[KunterBunter]

I'd like to view sff-files with XnViewMP Version 0.76.1 x64 (Oct 26 2015) on an iMac Retina 5k, OS X El Capitan Version 10.11.3.
Under Formats it is stated Structured Fax Format Extension sff Read is supported. However, I get "File can't be loaded!" when I doubleclick on it. What gives?

[cday]

I'd like to view sff-files with XnViewMP Version 0.76.1 x64 (Oct 26 2015) on an iMac Retina 5k, OS X El Capitan Version 10.11.3.
Under Formats it is stated Structured Fax Format Extension sff Read is supported. However, I get "File can't be loaded!" when I doubleclick on it. What gives?

Do you have Tools > Settings... > General | General tab -- Show all graphics formats enabled?

You could check that first: I'm not sure why that setting is provided, possibly as XnView software can open so many file types it speeds up opening common formats when unchecked?

[KunterBunter]

Thank you for your answer. On my Mac I found this under Preferences ... > General| General tab -- Show all graphics formats and it is already enabled. Any other ideas?

[cday]

Any other ideas?

In the absence of any other posts, I suspect your problem viewing SFF files on a Mac is due to a missing plug-in: a SFF plug-in Xssf.dll is included in the XnView Classic Extended download, or can be downloaded directly from this link. However, XnView Classic is 32-bit Windows software, and I'm not sure whether that plug-in would run on a 64-bit version of XnView MP on a Windows system, let alone on a Mac...

If you have Crossover software on you Mac, you could possibly use XnView Classic with the above plug-in installed to view your SFF files.

Do you have an example SFF file you could upload, 2MiB maximum in a ZIP or RAR archive, or post online?

[KunterBunter]

I tried XnView Classic in Windows and the sff files can be viewed. However, with a 64-bit version of XnViewMP on a Windows system, I have the same problem that the files cannot be opened. I have added an example file for testing.
Thanks again for your help.

[xnview]

I tried XnView Classic in Windows and the sff files can be viewed. However, with a 64-bit version of XnViewMP on a Windows system, I have the same problem that the files cannot be opened. I have added an example file for testing.
Thanks again for your help.

currently there is no Xsff 64bits plugin

[KunterBunter]

Thank you for your prompt response.
I installed the 32bit version of XnViewMP in Windows 10 Pro 64-bit, and it behaves the same as the 64bit version. Therefore, it seems there is no sff support at all in XnViewMP yet.

[cday]

If you copy the Xssf.dll plug-in from XnView Classic into the XnView MP 32-bit 'plugins' folder the SFF test file you uploaded should open, unless there is a specific issue with Windows 10...

Tested XnView MP 0.76.1 32-bit on Windows 7 SP1.

The XnView Classic 32-bit plug-ins should work for XnView MP 32-bit and XnConvert 32-bit Windows versions AFAIK.

[KunterBunter]

You are right, this way the old sff plugin still works in a 32 bit environment. Thank you very much!