Records can only be submitted to spreadsheets created in Google Sheets

Hi @Nabin_Raut
We're glad you're here. When you get a chance, please introduce yourself on this forum thread. I'd also encourage you to add a real picture as your avatar because it helps build community!

You have to create your spreadsheet using Google Sheets you can't for example create it locally on your computer using Excel/LibreOffice/Any tool like that and upload it to your Google Drive and then use as a submission spreadsheet.
Was that your case?