Overwritten auto export

[DavidHenryThoreau]

Checklist

• I can reproduce the bug with the latest versions.
• I made sure that there are no existing issues - open or closed - to which I could contribute my information.
• I made sure that there are no existing discussions - open or closed - to which I could contribute my information.
• I have read the FAQs inside the app (Menu -> About -> FAQs), in the README and my problem isn't listed.
• I have taken the time to fill in all the required details. I understand that the bug report may get dismissed otherwise.
• This issue contains only one bug.

Affected Android/Custom ROM version

LineageOS 19

Affected device model

Pixel Pro

How did you install the app?

F-Droid / IzzyOnDroid

Which apps are affected?

Calendar, Contacts, Notes

Steps to reproduce the bug

Auto export is a nice feature but I want all my backup named : events.ics but if that file already exists I can't save it.
In order to use my backup script with : adb pull events.ics

Expected behavior

Allow overwritten if file exists.

I've already open ticket to SimpleMobileTools/Simple-Calendar
SimpleMobileTools/Simple-Calendar#2236

Actual behavior

It's impossible to overwrits

Screenshots/Screen recordings

No response

Additional information

Edit by @naveensingh: This issue was transferred from https://github.com/FossifyOrg/Calendar