Microsoft apps (Excel, PowerPoint, Word) use up space apparently for no reason. At this point, I do not use them. I am using a Samsung J7 with Android 6, with 16Gb internal storage and no SD card.
Since I often run out of space, I check which apps are using it. I always find Microsoft apps are taking up space for data, and this seems strange to me.
For instance, I go to Settings -> Applications -> Application Manager -> Word -> Storage, and I see:
Total 256 MB App 104 MB Data 152 MB
Why would Word use 152 MB of Data, if I did not read/use any?
CLEAR DATA not long ago, and I checked that the corresponding storage space was actually freed to
Now it is taking again
What are those data?
It is not that much space, but in my case it makes a difference.
Excel and PowerPoint behave similarly.
A stranger case seems to be OneNote, with
Total 3.89 MB App 0 MB Data 3.89 MB
EDIT: Now, two days after the initial post, Word takes up 16 kB. That is fine. I will check periodically to see when it increases Data size.
EDIT: A couple of months after the initial OP, without using any of the apps, Excel had 251Mb of Data.