Online sharing Host for working Excel file?

[CBRR]

Our non profit is looking for an online host for our working excel file that
we can all have secure access to. It would be great if it was free since we
are a not for profit, but a reasonable fee can me looked into. This file will
always be a working file, added to, and changed.

Thanks!

 

[CBRR]

Sorry one more thing...

we tried Google docs, and the issue is we need the links to work in the
document and in google docs all the links are inactive.