We have found one software suitable in our database for this conversion.
Various databases in FDB format (Firebird, FoxPro etc.) can be easily export to Excel spreadsheets (.xls, .xlsx), mainly for some reporting purposes or to share just part of the data from databases.
If your database management tool does not posses default export function to Excel, you can use some of the dedicated database converters, for example Full Convert Enterprise.
FDB
An fdb file extension is associated with the FoxPro database management system and used for its default database file format.
XLS
Files with xls extension are best known as spreadsheets from Microsoft Excel. A spreadsheet is basically a grid of cells sorted in rows and columns. Each cell can contain text, numeric or formula data. Excel XLS spreadsheets can be opened in most other similar programs, such as OpenOffice.org Calc.