It seems that the most widely used symbol for bitcoin is a b with two vertical lines through it 1. Accepted practice is to use bitcoin (singular with an. It makes sense, as a single letter with a line or two through it is common for many currencies.
Thomas J. "Tom" Wilson Obituary Times Recorder
I think this is more of an issue with finding the file. Once you have the file (assuming the private key is intact), there should be no problem importing it into a wallet program. 关于b站打不开这个问题，我也是最近才遇到的问题 首先，既然电脑是连接了网络的，而且换其他浏览器也打不开 第一步，刷新一下dns win+r键输入cmd，再输入ipconfig/ flushdns 试一试可不可以用， 还.
From introduction on the bitcoin wiki:
Capitalization / nomenclature since bitcoin is both a currency and a protocol, capitalization can be confusing.
