Support

Email hello@sl-studio.dev. We answer within two business days; in January, sooner.

To report a problem, include

• What you expected and what happened (for example: “ZIP 02134 marked as an error”).
• The error text from the sidebar and the cell address — not the cell’s content.
• Free or Pro. For Pro, the last four characters of your key — never the whole key.

Please do not send us TINs, names, addresses or your spreadsheet. We never need them; a made-up value that shows the same problem is enough.

Common requests

• Lost license key: email us from the address you paid with; we re-send it.
• Move Pro to another Google account: email us from the paying address with the new account; we reset the binding.
• Refund: within 14 days of purchase, reply to your receipt.
• “Is this payee required?” We cannot give tax advice; the IRS instructions and a tax professional can. We can explain what the add-on checked.

Setup and troubleshooting: Help.