I downloaded this file (in the .zip format) looking for resources to use in HTML pages.
In this way, I am sure that this file contains "textures and backgrounds" to use for building web sites.
Inside this file should to be stored "in some way" some graphic components...

On Internet I read that .pat suffix is the format of PhotoShop..
On Internet I also got suggestion that, in order to use this file, it is possible to change his format to .bmp, through programs of "format conversion" ..., but this is not easy to do and, without a little experience, it is possible to do damages...

1 ----------------------------Looking in the properties of this file it is wrote :

"Binary (application/octet-stream)"

2 --------------------------- The output of GIMP (when it refuse to open the file) is :

Opening '/data-common/resources/web-pages_DECORATIONS/free-paper-patterns.pat' failed:
GIMP pattern plug-In could not open image

3 --------------------------- The command line "file" give this output :

[angelo_dev@localhost ~]$ sudo file free-paper-patterns.pat
free-paper-patterns.pat: data