deathinitly,
Please let me know where you have kept the file. I would need the complete path where exactly the file is located on your hard drive.
The above mentioned commands are just for example. I presumed that you might have kept the file on the Desktop and provided the path as per the OS folder structuring. If you have downloaded the file from Google Chrome or Mozilla Firefox basically the file gets downloaded in the Download folder which is in C:\users\your_username\Downloads.
When you will open the command prompt you might be in C:\users\your_username> use the command dir
to check the files and folders in it and then change to the download folder using the cd command (eg: cd Downloads
)
Then you might want to check if the file is actually in the Downloads folder. To check the files and folder in the current directory/folder use the command dir /w
or just dir
that will list all the files and folder in the current directory/folder. If the file is there then just use the command ren bt.txt bt.jpg
to rename the file