You can upload a file using the file upload feature of TOXUUS which can be reached through My Toxuus > Upload File
You cannot upload a file larger than 10Mb. Supported file types are BMP, DOC, EPS, GIF, JPEG, JPG, PDF, PNG, PPS, PPT, PS, RAR, RTF, TIF, TIFF, TXT, XLS, and ZIP. If you want to upload a program code use TXT file (example_code.c.txt for a C file). You can use archives (ZIP or RAR) for unsupported file types.
You can view the list of recently uploaded files by clicking on the Recent link in the File Upload page. If you click on All, this will bring up the list of all the files you uploaded. Lists include the name of the file, its link and the time/date of upload.