I have never personally attempted it, but below is a “how to article” and another thread about problems.
Resolution for 'Converting issue: 'Converting Quicken files with the Accountant Edition?' available: Yes.
The Converting 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 Converting issue yourself by looking for a resolution described in the article. If it is a complex Converting issue or you are unable to solve the issue, you may contact us by clicking here or by using other Converting support options.
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