QB Issue Resolution:
Sorry, the only option is to restore the backup you (hopefully) made before condensing your file.
Resolution for Issue 'can I uncondense my quickbooks?' available: Yes (Solved).
Source: Intuit Community forum.
can I uncondense my quickbooks?: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.Support for condensing
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Error Recovery for condensing [Canada]
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