file write protection

[selbstlesebuch]

Describe the Bug

writing files who are protected is possible but may not

Steps to Reproduce

create a file spreadsheet.ots with or without write protection
open in Collabra App
change a cell
save or return.

Expected Behavior

The changes should not be writen in the .ots file
there should be a .ods file

Actual Behavior

The model file is overwriten, The model is destroyed.

Screenshots

not helpfull

Desktop

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Smartphone

(Please complete the following information)
Collabra App 24.04.9.2
on Samsung S23

Additional Context

Reason is: I work with users in Africa who have very poor knowledge and they always destroy my model by writing in it.