Change Docs settings

Tap .

Tap .

Tap 

Docs

.

Tap the

 Auto Cache Size Adjustment

 setting to set the maximum files cache size. If you set it to AUTO, the cache size will use no more than 30% of the free device space.

Tap the 

Add Offline Files Cache

 setting to set the maximum offline files cache size. If you set it to AUTO, the cache size will use no more than 20% of the free device space. If you specify a cache size, the offline cache size and the current free space is displayed in this window 

Slide the switch for 

Use Cell Data

 to turn off cell data, restricting automatic uploads and updates of offline files to Wi-Fi only.

Choose a quick-save location to save email or calendar attachments to a Docs folder in the background. In order to take Office Online actions directly for an attachment, select your quick-save location in a valid server-based folder.