QIF and CSV are two types of data files. While the CSV format is associated with database files, the QIF format is used to store financial data.

CSV or Comma Separated Variable files are commonly used data files that store data similar to a database. Each record is separated by a delimiter, such as a comma or semicolon, and each new row of data indicates a new record. The CSV format is primarily used to transfer tabular data from a database to a simpler text format. QIF or Quicken Interchange Format is another popular data format. Developed by Intuit, it is used to write the user’s financial data in a text format. This type is mainly used to transfer data from one Quicken data file to another. It is also used to transfer financial data to Quicken software.

Both extensions are widely used and are compatible with various applications. QIF can be opened in programs such as Intuit Quicken Deluxe 2010, Microsoft Money, and Corel Word Perfect Office X5, in addition to other finance-related programs. CSV, on the other hand, can be opened in Microsoft Excel 2010, Corel Word Perfect Office X5, Open Office org, etc. CSV can also be opened in text editors such as Notepad.

Both CSV and QIF are data file formats. The difference between these formats is that CSV is used to store database files, while QIF is used to store financial data. The second difference is that CSV has delimiters to separate records and store tabular data unlike QIF. Finally, QIF is used to transfer financial data through different Quicken files, while CSV is used to transfer data through databases and spreadsheets.