Hello Sherri,
When you create a financial statement, you assign the name and the location of the file.
Financial statements should be stored in files that begin with ?GL!? and end in your data extension. Please have a look at Ledger sample data for an example. The person who creates the statement defines the file name.
When you choose File, Open, in Maintain Financial Reports, you can also change the 'Files of type' setting to all files. Hopefully, you will recognize your statement from the name of the file.