Upload zip files
If you don't want to upload images or videos, you can always upload a zip file instead.
A zip file can contain anything.
How to make a zip file
In Windows simply select all the files that you want to be part of the zip file.
After the files have been selected, right click one of them and choose "Send to..."
and choose "Compressed (zipped) folder".
A new zip file appears in the folder where you right clicked. Browse to this file
when you want to upload it to this site.
Zipped images
If you want to zip images, you can choose to let people download the zip itself
or view the gallery online. If you choose "Zipped images" when uploading, the zip
file will be unpacked after upload and the images inside it will be displayed. Any
non-image files are discarded.
If you want to let people download the actual zip file, just select "Zip file" when
uploading.