If an office document (i.e. a spreadsheet) contains macros the document is read-only on the device. This precludes scenarios such as data collection where a spreadsheet is primarily used to collect data but may contain macros that are used on the desktop version of Office to clean the data after collection.

Suggestion 1: The document should be editable but not destroy the macros as changes are persisted. The macros themselves would be blocked akin to the desktop application using default security.

Suggestion2: When a document containing macros is enabled for editing but the macros are blocked display a message to the user indicating the blocking of the macros (similar to the desktop version). This would be helpful for scenarios where the document contains "autoexec" macros that do not run because macros are not supported. This would help the user understand why the experience is not the same as when the same document is used on the desktop.