{"version":"2.1.321","anchor":"artifact-upload-asset-warns-about-duplicate-xlsx-copies","canonical_anchor":"artifact-upload-asset-warns-about-duplicate-xlsx-copies","heading":"Failed spreadsheet uploads now warn about leftover copies","tier":"notice","area":"Artifacts","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.321\/e\/artifact-upload-asset-warns-about-duplicate-xlsx-copies","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.321","markdown":"### Failed spreadsheet uploads now warn about leftover copies\n\nWhen an .xlsx upload to an artifact fails, the error now says extra stored copies block sharing and asks you to delete them\n\n**What**\n\nAn artifact is a piece of content, such as a document or spreadsheet, that Claude Code creates and stores so it can be viewed or shared. Before, a failed upload of an Excel spreadsheet (an `.xlsx` file) to an artifact showed only the plain error.\n\nThe error now adds a note. Every stored copy of an `.xlsx` keeps the artifact from being made public or shared outside your organization, so you should delete the extra copies.\n\n**Why**\n\nRetrying a failed upload can leave stray copies behind. Those copies quietly stop you from sharing the artifact, and the note tells you to clean them up.\n\n- Area: Artifacts\n- Tier: You'll notice\n- Useful: 1\/5\n- Signal: 1\/5\n- Scope: individual\n- Heads-up: no"}