The system allows you to store different document types within the File Manager Section, here are a list of file types that you can store: -

.Doc (Word Docs)

.PPT (Powerpoint files)

.XSLX (Excel files)

.CSV (Excel files)

.JPEG (Image file)

.PDF (Document file)

.GIF (Image file)

.EPS (Image file)

.RTF (Rich Text File)

There are a lot more but you can't store executable files, WAV files, etc within file manager due to security