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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"`ConvertTo-Csv`/`Export-Csv -UseCulture:$false` uses the wrong delimiter in ouput","articleBody":"### Prerequisites\n\n- [x] Write a descriptive title.\n- [x] Make sure you are able to repro it on the [latest released version](https://github.com/PowerShell/PowerShell/releases)\n- [x] Search the existing issues.\n- [x] Refer to the [FAQ](https://github.com/PowerShell/PowerShell/blob/master/docs/FAQ.md).\n- [x] Refer to [Differences between Windows PowerShell 5.1 and PowerShell](https://learn.microsoft.com/powershell/scripting/whats-new/differences-from-windows-powershell).\n\n\n### Summary\n\nThis is a sub-issue of https://github.com/PowerShell/PowerShell/issues/25242.\n\n`ConvertTo-Csv` and `Import-Csv` do not respect an explicit `$false` value for the `-UseCulture` switch parameter.\n\n`-UseCulture:$false` doesn't behave as if the switch wasn't specified. It also doesn't behave as if it *was* specified. Instead, it results in either no delimiter (`ConvertTo-Csv`) or a space as the delimiter (`Import-Csv`).\n\n\n### Steps to reproduce\n\n`ConvertTo-Csv`:\n\n```powershell\n[pscustomobject] @{ H1 = 'V1'; H2 = 'V2' } | ConvertTo-Csv -UseCulture:$false\n```\n\n`Export-Csv`:\n\n```powershell\n$file = (New-TemporaryFile).FullName\n[pscustomobject] @{ H1 = 'V1'; H2 = 'V2' } | Export-Csv -LiteralPath $file -UseCulture:$false\n```\n\n\n### Expected behavior\n\n`ConvertTo-Csv`:\n\n```\n\"H1\",\"H2\"\n\"V1\",\"V2\"\n```\n\n`Export-Csv`:\n\n```\n\"H1\",\"H2\"\n\"V1\",\"V2\"\n```\n\n- `-UseCulture:$false` behaves as if the switch wasn't specified.\n- The default `,` item delimiter is used by both commands.\n\n\n### Actual behavior\n\n`ConvertTo-Csv`:\n\n```\n\"H1\"\"H2\"\n\"V1\"\"V2\"\n```\n\n`Export-Csv`:\n\n```\n\"H1\" \"H2\"\n\"V1\" \"V2\"\n```\n\n- `-UseCulture:$false` neither behaves as if the switch was or wasn't specified.\n- `ConvertTo-Csv` output includes no item delimiter.\n- `Export-Csv` output includes a space as the item delimiter.\n\n\n### Environment data\n\n```powershell\nName                           Value\n----                           -----\nPSVersion                      7.6.0-preview.5\nPSEdition                      Core\nGitCommitId                    7.6.0-preview.5\nOS                             Microsoft Windows 10.0.19045\nPlatform                       Win32NT\nPSCompatibleVersions           {1.0, 2.0, 3.0, 4.0, 5.0, 5.1…}\nPSRemotingProtocolVersion      2.3\nSerializationVersion           1.1.0.1\nWSManStackVersion              3.0\n```","author":{"url":"https://github.com/surfingoldelephant","@type":"Person","name":"surfingoldelephant"},"datePublished":"2025-11-22T17:03:37.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/26513/PowerShell/issues/26513"}