What Is a .QBW File? (QuickBooks Company File)
The .QBW file is your QuickBooks Desktop company file -- where all your data lives. Here's what it is, the related .QBB/.ND/.TLG files, and how to protect it.
A .QBW file is your QuickBooks Desktop company file -- the single file that holds all of your accounting data: the chart of accounts, customers, vendors, transactions, and history. When you "open your books" in QuickBooks Desktop, you are opening a .QBW.
Why it matters for keeping Desktop alive
Because your data lives in the local .QBW, it is yours and stays fully accessible even after your version is discontinued. Protecting this file is the whole game -- see the company file health routine.
The related files you'll see
| Extension | What it is |
|---|---|
.QBW | Your live company file (the data) |
.QBB | A backup copy created by QuickBooks |
.QBM | A portable, compressed copy for transport |
.ND | Network Descriptor -- points workstations to the file |
.TLG | Transaction Log -- tracks changes since the last backup |
Protect it
Keep multiple dated .QBB backups on separate media, run Verify and Rebuild periodically, and don't delete .ND/.TLG files casually (QuickBooks recreates .ND/.TLG, but they help recovery). For the full routine, see company file health.