Convert Excel to SQL Server
Drop your Excel file to get a SQL Server script with CREATE TABLE and INSERT statements. Each column gets a type, and every fix is listed with its row and column.
4 rows converted, 10 fixes, none rejected
| Row | ||||||
|---|---|---|---|---|---|---|
| 5 | 00127 | Peña Muñoz | 01234 | 03/02/2024 | sí | 1.234,50 |
| 6 | 00128 | José Ángel | 09870 | 15/02/2024 | no | N/A |
| 7 | 00129 | Zoë Ortíz | 44100 | 29/02/2024 | sí | -12,00 |
| 8 | 00130 | Ñuño Castañeda | 06700 | 11/03/2024 | no | 980,75 |
-- Written by IntoSQL for SQL Server.
SET NOCOUNT ON;
BEGIN TRANSACTION;
CREATE TABLE clientes_2024 (
no_cliente nvarchar(8) NOT NULL, -- Nº Cliente
nombre nvarchar(16) NOT NULL,
c_p nvarchar(8) NOT NULL, -- C.P.
alta date NOT NULL,
activo bit NOT NULL,
saldo decimal(6,2)
);
INSERT INTO clientes_2024 (no_cliente, nombre, c_p, alta, activo, saldo) VALUES
(N'00127', N'Peña Muñoz', N'01234', '2024-02-03', 1, 1234.50),
(N'00128', N'José Ángel', N'09870', '2024-02-15', 0, NULL),
(N'00129', N'Zoë Ortíz', N'44100', '2024-02-29', 1, -12.00),
(N'00130', N'Ñuño Castañeda', N'06700', '2024-03-11', 0, 980.75);
COMMIT TRANSACTION;
Fixes
- The header is on row 4; the rows above it were left out.
- Row 9 ("TOTAL") is a total, so it was left out.
- Column "Nº Cliente" is named no_cliente so SQL Server reads it without quotes.
- Column "C.P." is named c_p so SQL Server reads it without quotes.
- Leading zeros kept in "Nº Cliente": 00127 stays 00127, stored as text.
- Leading zeros kept in "C.P.": 01234 stays 01234, stored as text.
- 15/02/2024 proves the dates in "Alta" are day-first, so 03/02/2024 is read as 2024‑02‑03.
- "Activo" holds yes and no words (sí, no), stored as boolean.
- Numbers in "Saldo" use a decimal comma: 1.234,50 is read as 1234.50.
- N/A in "Saldo" read as empty (1 of 4 values).
Your file is converted on this computer and never uploaded.
Other samples:
From Excel to SQL Server, column by column
The sample above, clientes_2024.xlsx, as IntoSQL writes it for SQL Server: what each column holds in the file, the type it gets and how its first value lands in the script.
| In the file | First value | Column | SQL Server type | In the script |
|---|---|---|---|---|
| Nº Cliente | 00127 | no_cliente | nvarchar(8) | N'00127' |
| Nombre | Peña Muñoz | nombre | nvarchar(16) | N'Peña Muñoz' |
| C.P. | 01234 | c_p | nvarchar(8) | N'01234' |
| Alta | 03/02/2024 | alta | date | '2024-02-03' |
| Activo | sí | activo | bit | 1 |
| Saldo | 1.234,50 | saldo | decimal(6,2) | 1234.50 |
Load the script into SQL Server
The download is a plain .sql file. Run it with SQL Server's own tools.
From a terminal
sqlcmd -S localhost -d mydb -f 65001 -i clientes_2024.sql_server.sql-f 65001 reads the file as UTF-8, so accents and ñ arrive as written.
From a database tool
In SQL Server Management Studio or Azure Data Studio, open the file and choose Execute.
What to know about Excel files and SQL Server
What IntoSQL reads in Excel files
- The header row is found even when titles or notes sit above it, and a totals row at the end is left out.
- Dates stored as Excel serial numbers become real dates, in both the 1900 and the 1904 date systems.
- Codes with leading zeros, like 00127, stay text. When a workbook has several sheets, you pick the sheet.
What to know about SQL Server
- Text is nvarchar with N'...' values, so accents survive; text over 4000 characters becomes nvarchar(max).
- Yes and no values become bit, and dates with an offset become datetimeoffset.
- Long values are written in pieces, so sqlcmd and SQL Server Management Studio accept the script.
How each kind of value is stored in SQL Server
| Value | SQL Server |
|---|---|
| Yes and no | bit |
| Whole numbers | int |
| Large whole numbers | bigint |
| Decimals | decimal(p,s) |
| Floating-point numbers | float |
| Dates | date |
| Times of day | time |
| Dates with a time | datetime2 |
| Dates with a time and offset | datetimeoffset |
| Text | nvarchar(n)nvarchar(max) |
Questions about Excel to SQL Server
Not answered here? Write to us from the contact page and a person replies. Contact page
How do I convert Excel to SQL Server?
Drop your file on the converter at the top of this page. It finds the header, reads every value and writes the SQL Server script, listing each fix it made. Download the script and run it with sqlcmd.
Which sheet of the workbook is converted?
The first visible sheet. When a workbook has more than one, a Sheet option appears, so you can pick another.
Which SQL Server types does it use?
Yes and no values become bit, whole numbers int, decimals decimal(p,s), dates date, dates with a time datetime2 and text nvarchar(n). Sizes come from the longest value in each column.
Does it keep leading zeros in SQL Server?
Yes. A code such as 00127 stays text, so SQL Server stores it as nvarchar(8) and the script writes it as N'00127'.
Can it load the data into SQL Server without a script?
No. Download the script and run it with sqlcmd. Loading without a script works for PostgreSQL, MySQL, MariaDB and SQLite, from the desktop app or the command line.
How big can the Excel file be?
In the browser, a workbook is read whole, so the limit is the memory the browser gives this page. The desktop app and the command line take workbooks of any size; on an Apple M4 laptop the command line converts a 117 MB workbook of a million rows in about a second.