XLSXWRITER works on my Mac computer when I run my kivy app and successfully creates an XLSX file.
Unfortunately once I compile the apk using buildozer the "Export" button I made doesn't create the XLSX. 
No crash occurs, I just can't find the XLSX that should have been created. My theory is that the spreadsheet is created but 'lives' within the APK Package.
Please help me to create XLSX using Kivy on android!
* Python 2.7.15
* Kivy 1.9.1
* Android Phone
With an aid from @"John Anderson", the solution lies in the AndroidManifest.xml file, where one can simply "comment out" using the html comments "". At the bottom one can find the list of permissions that the app may or may not require, and can thereby comment out unnecessary permissions like "WRITE_EXTERNAL_STORAGE".
Why doesn't XLSXWRITER create a file once my Kivy app is compliled into an APK?