Use a WebDAV server to transfer Numbers spreadsheets
You can copy your Numbers spreadsheets to a WebDAV server, then transfer them from the server to your iPhone or iPad. You can also open and edit them on the server.
You can transfer files to your iPhone or iPad in Numbers ’09, Excel, or CSV file format.
Connect to a WebDAV server from a Mac
Click the desktop to switch to the Finder.
Choose Go > Connect to Server (from the Go menu at the top of your screen).
Type the address of the server in the Server Address field, then click Connect.
The server address should be in a form similar to this:
You can find more information about using WebDAV in macOS Help. Click the desktop to switch to the Finder, choose Help > macOS Help (from the Help menu at the top of your screen), then search for “WebDAV.”
Copy spreadsheets between a WebDAV server and iPhone or iPad
Open Numbers on your iPhone or iPad.
Do one of the following to navigate to Locations in the spreadsheet manager:
In an open spreadsheet, tap Spreadsheets or in the top-left corner of the screen. If Locations doesn’t appear in the top-left corner of the next screen, tap again until you see Locations.
If no spreadsheet is open and you don’t see a Locations list, tap Browse at the bottom of the screen, then tap Locations in the top-left corner of the screen (if necessary).
Tap WebDAV in the Locations list, then tap Connect to WebDAV Server.
If you don’t see WebDAV below Locations, tap at the top of Locations, tap Edit, turn WebDAV on, then tap Done.
Type the server address and your user name and password, then tap Sign In.
After you sign in to your WebDAV server, you can open and edit files on the server without signing in again. You remain signed in to the server until you tap next to WebDAV in the Locations list.
Do one of the following:
Copy a file from the server: Tap the file on the server. When the transfer is complete, the file appears in the spreadsheet manager. Tap the file to open it on your device.
Copy a spreadsheet to the server: With the spreadsheet manager in browse view, tap Select in the top-right corner, tap the spreadsheet, then tap Move at the bottom of the screen. Tap WebDAV, then tap Copy in the top-right corner.
Open and edit a file: Tap the file. When the transfer is complete, the file opens and any edits you make are synced back to the server.