Do you still have that spreadsheet file?  Maybe if the spreadsheet program did not change the private key too much you can figure out how to undo the changes.  Try pasting some other bitcoin private keys into the same spreadsheet program, and then observe how they get changed.  They might not get modified after just pasting, so if not, save and reload the spreadsheet file.

I doubt a spreadsheet program would make random changes to the private key.  There is likely to be a "system" to the changes, which you can figure out and then reverse in order to recover your bitcoins.  If the "system" can lose information, you might be able to figure out a set of possibilities that is not too large to just try them all.  As an example, if the spreadsheet program turns all upper case letters into lowercase ones, and your private key as shown in the spreadsheet now is "aa" then you have to try the four possible originals "AA", "Aa", "aA" and "aa".

Hopefully you can get your bitcoins back.

Good luck!

After logging in to the Blockstack Browser (at https://browser.blockstack.org/) and then logging in to Dappy Wallet it authorized me.  If it is intended to work this way, such that a user must log in to the Blockstack Browser first and not directly via the Dappy Wallet web page, I think it could be a good idea to mention this on the Dappy Wallet page itself.

In the pop up showing the private keys for wallets, the p element has classes key and description, and then in the CSS there is


which leads to the private keys being cut off, ending with a trailing ellipsis because they are too long.  The ancestor div with the bijsdo class only allows 330px for width, and then it loses 40 more px in padding.  Given the importance of the private keys, I think it is important to make sure they are always completely displayed.


Why are there unusual names for the wallets, such as Bitcoin lobster-during?

Is the Dappy Wallet currently active and working?

About a week ago I registered a blockstack user account and loaded the Dappy Wallet via the web application (then at the app.bcnet.io) domain.  Just now I went to reload the Dappy Wallet under the new domain (app.dappywallet.com) and after going through the redirect to restore the blockstack account and then back to app.dappywallet.com the result is a blank gray screen with the text "Login verification in progress".  Reloading periodically over an hour or so always resulted in the same empty screen and message.

So it seems the web application Dappy Wallet, or maybe the blockstack systems such as Gaia it depends on is currently offline.