Excel (.xlsx) file import not working
WarmySender only supports CSV (Comma-Separated Values) file format for prospect imports. Excel files (.xlsx, .xls) are not directly supported.
How to Convert Your File:
From Microsoft Excel:
- Open your Excel file.
- Click File > Save As (or Export).
- In the 'Save as type' dropdown, select 'CSV (Comma delimited) (*.csv)' or 'CSV UTF-8 (Comma delimited) (*.csv)'.
- Click Save. If prompted about losing features, click 'Yes' — CSV only stores data, not formatting.
- Upload the resulting .csv file to WarmySender.
From Google Sheets:
- Open your spreadsheet in Google Sheets.
- Click File > Download > Comma Separated Values (.csv).
- The CSV file downloads to your computer.
- Upload this .csv file to WarmySender.
From Apple Numbers:
- Open your file in Numbers.
- Click File > Export To > CSV.
- Click Save.
- Upload the .csv file to WarmySender.
CSV Requirements:
- File must be UTF-8 encoded (most modern tools default to this).
- First row must be column headers (e.g., email, firstName, lastName, company).
- The 'email' column is required (unless you have linkedinUrl for LinkedIn-only prospects).
- Maximum 10,000 rows per import.
- Common delimiters: comma (,) is standard. Semicolon (;) may not be recognized.
Common Issues After Conversion:
- Special characters showing as garbled text — make sure you saved as 'CSV UTF-8', not just 'CSV'.
- Extra empty rows at the bottom — delete empty rows in Excel before exporting.
- Merged cells — unmerge all cells before exporting (merged cells don't translate to CSV).
- Multiple sheets — CSV only exports the active sheet. Switch to the correct sheet before saving.
Tip: After converting, open the CSV in a text editor (Notepad, TextEdit) to verify it looks correct before uploading.