If you have access to the computer you encrypted the text files on, you don't have to export the encryption certificate to open encrypted files -- unless it's inconvenient to open them on that computer. To open them on the original computer, log into it, right-click the file and select "Open with" and then "TextPad."
Can you decrypt encryption?
All encryption can be decrypted if you have the key, else what's the point. Assuming you mean can encryption ciphers be broken by the NSA, then some can and some can't - yet, as far as we know, in reasonable time. All encryption can be decrypted if you have the key, else what's the point.
How do you encrypt a text?
Open the Android Market app on your device and install the Secret Message app. Enter a secret key into the Secret Key box at the top of the app's screen, type the message you want to encrypt into the Message box, tap “Encrypt” and tap “Send via SMS” to send the encrypted message.
Does encryption converts plain text into ciphertext?
encryption – the process of converting plaintext to ciphertext (occasionally you may see it called 'encipherment') decryption – the process of reverting ciphertext to plaintext (occasionally 'decipherment').