You will not lose your encrypted files by uninstalling the AxCrypt app. But whenever you want to open the encrypted files, you need AxCrypt application to decrypt the AxCrypt encrypted files.
Only the AxCrypt application can open/decrypt the AxCrypt encrypted files(.axx extensioned files), other apps can’t. So AxCrypt application is required to manage the encrypted files.
You can use the AxCrypt portable(no need installation) app to decrypt the existing files and encrypt more new files.
To download the portable version, https://www.axcrypt.net/download/ .
If you do not want to use the AxCrypt anymore, please decrypt all the encrypted files before uninstalling the app.
Sign in to the AxCrypt app with your AxCrypt credentials. Then follow the below instructions to decrypt the encrypted file(s)
You can able to decrypt the AxCrypt encrypted file by navigating File | Stop Securing from the AxCrypt app.
In the recent files tab, right click on the file(which you want to decrypt) and select Stop Securing and remove from list
In windows explorer, right click on the file and Select AxCrypt > Decrypt.
So please check the tutorial to decrypt the encrypted files with the AxCrypt app https://www.youtube.com/watch?v=jyixJ03qmkg&list=PLHRiJs6YxUhgR9sd66jR4ao0EiCxPO7u6&index=4.