Free online DB to XLSX converter

A reporting or spreadsheet application may require an .xlsx workbook when the source records are stored in a .db file. Conversion makes the data editable, filterable, and shareable without requiring the original database application.

Because .db is a generic extension, the correct conversion method depends on the database engine that created the file.

What the DB format is

.db commonly identifies a SQLite database used by desktop software, mobile apps, browsers, embedded devices, and local business systems. A SQLite database can contain tables, indexes, views, triggers, and relationships. DB Browser for SQLite, SQLiteStudio, and the sqlite3 command-line tool can open compatible files.

The extension can also represent a proprietary database format created by a specific application. If SQLite tools cannot open the file or display its tables, identify the originating program and use that program’s export function. Renaming the extension does not convert the database.

What the XLSX format is

.xlsx is Microsoft Excel’s XML-based workbook format. It stores one or more worksheets containing values, formulas, cell formatting, filters, charts, and other spreadsheet features. Microsoft Excel, LibreOffice Calc, Google Sheets, and many reporting systems can open it.

XLSX is suitable for inspecting, editing, filtering, and presenting tabular records. It does not preserve database indexes, triggers, permissions, relational behavior, or query logic, so the original database should remain the authoritative copy.

How to convert a SQLite DB file

For a SQLite file, DB Browser for SQLite provides a practical desktop workflow:

1. Make a backup copy of the .db file and open the copy in DB Browser for SQLite.
2. Select File → Open Database. If the tables appear under Database Structure, the file is compatible with SQLite.
3. Open Browse Data, select a table, and choose File → Export → Table(s) as CSV file. Export each required table.
4. Open the CSV files in Microsoft Excel or LibreOffice Calc. Check the delimiter, character encoding, dates, and identifier columns before confirming the import.
5. Put each database table on its own worksheet if required, then choose File → Save As and select Excel 2007–365 (*.xlsx).

For selected columns, filters, sorting, or joins, query SQLite before exporting instead of exporting every column. For example, list tables with:

sqlite3 database.db ".tables"

Export a query as CSV with:

sqlite3 -header -csv database.db "SELECT customer_id, name, total FROM orders WHERE status = 'paid' ORDER BY customer_id;" > paid_orders.csv

Open paid_orders.csv in Excel or Calc and save it as database.xlsx. This command exports one result set; repeat it for other tables or queries.

Using the 101convert converter

You can convert the file on 101convert.com for free without installing software. Upload the .db file, select XLSX if the format is supported for that database, start the conversion, and download the workbook. Do not upload confidential or regulated records unless the service’s data handling and retention terms are acceptable.

Quality and compatibility limits

• A database with several tables may produce one worksheet per table, one output file per table, or only a selected table, depending on the conversion method. Relationships and database objects are not recreated as XLSX features.
• SQLite schemas often store dates and times as text, numbers, or Unix timestamps rather than as a dedicated date type. Verify the resulting date interpretation in Excel.
• During CSV import, commas, quotation marks, line breaks, leading zeros, long numeric identifiers, and non-UTF-8 characters can be misinterpreted. Set the correct encoding and import identifier columns as text when necessary.
• Excel worksheets are limited to 1,048,576 rows and 16,384 columns. Split larger tables or retain them in the database.
• Encrypted, damaged, locked, or proprietary files may require the original application, a database driver, or a repair utility before export.