Import and exports overview
Squirrel can import an export the following file formats: OFX, QIF, CSV. Those files are commonly supported by bank instutions and other personal finance applications.
To import a file
Select File > Import… You can also drag and drop a file's icon on Squirrel's icon in the dock.
Select a file in the open panel, and click on the Open button.
To export a file
Select an account or folder in the Source list.
Select File > Export… then select a file type.
Choose a destination and click "Save".
Importer window
The importer window consist of one or multiple account views - one for each account contained in the file to import - and the options view.
Account view

The first element of the view is a checkbox to specify if the account should be imported. This button is associated to a menu to select the destination account in Squirrel.
A table displays the transactions contained in the file, interpreted according to the settings specified in the options. If a date or amount is not correctly displayed, you need to change the importer's options.
Each transaction has a checkmark indicating if it will be imported or not. By default, all transactions are selected for import but you can select only a subset of them.
Automatically deselect duplicates
Squirrel can find transactions already existing in the destination account. A transaction is considered as a duplicate if another transaction already exists with the same amount, around the same date.
Preview table
The preview table displays the content of the destination account, as it will be after the import. Imported transactions are shown in gray.
Options view

The options are useful to specify custom formats and mapping rules used to interpret the contents of the file to import. If the result in the tables is not satisfying, you probably need to change those options.