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What are various file extensions associated with Quickbooks?

  1.  .QBA – Accountant’s Copy Working File
  2.  .QBB – Backup File
  3.  .QBM – Portable Company File
  4.  .QBW – For Windows Company File
  5.  .QBX – Accountant’s Copy Transfer File
  6.  .QBY – Accountant’s Copy Change File
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