I agree with the author that working on files is preferable, if possible. But SaaS often also solve the hard problem of dissemination, and good luck syncing an excel file with 100 people via Dropbox.
As someone actively pushing a company away from that model to the ubiquitous M365/SharePoint/OneDrive approach, there are so many hidden costs to 'a network share'.
How are you managing VPN access to file servers? How about backups/versioning? Any searching? Access control that can be easily managed by end users? Data governance, RBAC, compliance audits? BYOD/mobile device access?
> How are you managing VPN access to file servers? How about backups/versioning? Any searching? Access control that can be easily managed by end users? Data governance, RBAC, compliance audits? BYOD/mobile device access?
you can't manage permissions very well or precisely. You can give a user "read only" or "edit" but you cannot manage individual sheets or cells. Spreadsheets are great for lots of things, but sharing them with lots of people is not one of them.