Question 1

What is CSV format and why convert Excel to CSV?

Accepted Answer

CSV (Comma-Separated Values) is a universal plain text format that stores tabular data. Unlike Excel's proprietary format, CSV can be opened by virtually any application including databases, programming languages, and other spreadsheet software. Converting to CSV is essential for data import/export, database operations, and cross-platform compatibility.

Question 2

How do I convert my Excel file to CSV?

Accepted Answer

Upload your Excel file using the button above. Our converter will extract the data from your spreadsheet and create a properly formatted CSV file. The conversion typically completes in seconds. Download the CSV file and use it with any application that accepts CSV input. No special software required.

Question 3

What happens to multiple worksheets?

Accepted Answer

Each worksheet in your Excel workbook becomes a separate CSV file. Since CSV format doesn't support multiple sheets, a workbook with 5 sheets produces 5 CSV files, delivered in a ZIP archive. Files are named after their original sheet names for easy identification.

Question 4

Are formulas converted or just values?

Accepted Answer

CSV files contain only data values, not formulas. All calculated results are exported, but the formulas themselves are not preserved. This is a limitation of CSV format, which only stores plain text data. If you need to preserve formulas, keep your original Excel file as a backup.

Question 5

What character encoding is used?

Accepted Answer

We use UTF-8 encoding by default, which supports all international characters including Asian languages, accented letters, and special symbols. UTF-8 is the most widely compatible encoding and works with virtually all modern applications. If you need a different encoding for legacy systems, ChatSlide AI offers encoding options.

Question 6

How are numbers and dates formatted?

Accepted Answer

Numbers are exported as plain numeric values without formatting symbols (no currency signs, percentage marks, etc.). Dates are typically exported in ISO format (YYYY-MM-DD) for maximum compatibility. ChatSlide AI offers options to customize number and date formats based on your target system's requirements.

Question 7

What happens to formatting like colors and fonts?

Accepted Answer

CSV is a data-only format and cannot store formatting information. Cell colors, fonts, bold/italic, borders, and other visual formatting are not preserved. Only the actual cell values are exported. If you need formatted output, convert to PDF instead or keep the original Excel file.

Question 8

Can CSV files be imported into databases?

Accepted Answer

Yes, CSV is the standard format for database import/export. Most databases including MySQL, PostgreSQL, SQLite, SQL Server, and Oracle can directly import CSV files. The clean, properly formatted output from our converter is optimized for database compatibility.

Question 9

What delimiter is used in the CSV?

Accepted Answer

We use comma as the default delimiter, which is the most common standard. Values containing commas are properly enclosed in quotes. ChatSlide AI offers alternative delimiters like semicolon, tab, or pipe for systems that require different formats. Tab-separated values (TSV) are also available.

Question 10

Is there a file size limit for conversion?

Accepted Answer

The free online tool supports Excel files up to 100MB. CSV output files are typically smaller than the original Excel since formatting is removed. Very large spreadsheets with hundreds of thousands of rows convert successfully but may take longer. ChatSlide AI offers extended limits for larger datasets.

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