Encrypt a single .txt file

I need to be able to encrypt a single text file and keep it portable. The process would work like this. create the text file> encrypt it> upload it to a storage server. When ever the I need to access the file I just pull it down and decrypt it using the same utility.

opensource/freeware/commercial, it does't matter. It just needs to work.
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There are good tools which you can evaluate,,, ref the download links below,I would suggest you to try
Encrypt Files i used it sometime back and it was very effective.

I'd strongly suggest http://www.gnupg.org/ along with one of the GUIs for your platform. If on windows, give http://gpgee.excelcia.org/ a try.

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Or to make it more simpler, just zip it with password = encrypted document. decrypt with password.
7-zip creates encrypted compressed document. Why not use Mozy or IDrive online backup service? It automatically encrypts and uploads. You can restore any time. Automatically decrypted.
cebrooks03Author Commented:
Looks like gnupg is the ticket. What we have to do is store password files for our clients in our CRM system.  Thanks for all the great suggestions.
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