If you want to connect to the internet you need an ISP (Internet Service Provider).
So you subscribe for there services $$$ & you get a user name , password , support , E-mail address but also , with most of the ISP's , you get about 50 MB of web space.
You already are connected to the internet so you probably already use an ISP.
Why not use this web space for your purposes ?
You can connect to this space with FTP (File Transfer Protocol) software or web design software & place all sorts of files there.
You don't really need FTP software , IE (Internet Explorer) is FTP capable.
Usually the web space address is "www.ISP.com/~username"
If you use IE , and type in the address box :
"ftp://username
assword@www.ISP.com/~username"
you can drag files to & from that web space.
To read the files you just have to enter the URL to the file.
Example , if you uploaded the file "test.doc" , the receiving party has to enter in the IE address box :
"http://www.ISP.com/~username/test.doc" to access it.
Disadvantage , everybody can access the files if they find out the file names.
You can make it harder by creating sub folders with strange names like "cxz321" which makes it substantially harder to locate the files &
you can for example
ZIP the files & give them a password.
Other software is available to encrypt your files.