How to Import Multiple Sheets Using the IMPORTRANGE Function
Learn the workaround to combine multiple sheets into one using the IMPORTRANGE function in Google Sheets! We'll take you through the formula and syntax you need to make it happen and improve your data analysis.
Importing a data range from a single sheet
The IMPORTRANGE function allows you to import a specific data range from another Google Sheets workbook. It has the following syntax:
=importrange("url_of_workbook","data_range")
For example, we will import the following Pivot Table from a source spreadsheet to a destination spreadsheet:

The URL to the source spreadsheet and the range are needed to import the array using IMPORTRANGE function.
Both the URL and the data range should be enclosed by quotation marks. The workbook must be either a public workbook or one that you have access to.
If the workbook you are including is also yours, a prompt will pop up, asking you to connect the sheets. Click Allow access.

Afterward, the data will be loaded.

A workaround to import multiple sheets
The question is, how can we import multiple sheets using the IMPORTRANGE function?
Unfortunately, we cannot specify multiple spreadsheets or multiple sheets via the IMPORTRANGE function. The function works with only one range from a single source specified.
Nonetheless, there are workarounds. A simple workaround involves using a pair of braces with a set of items separated by a comma or a semicolon. The comma would put the ranges side-by-side:
={importrange(url1,range1),importrange(url2,range2),importrange(url3,range3)}
while the semicolon would put them on a single column:
={importrange(url1,range1);importrange(url2,range2);importrange(url3,range3)}
If we want to import multiple sheets from a single spreadsheet, we add an IMPORTRANGE function for each of the sheets, specifying their respective ranges, while specifying a single URL for all of them:
={importrange(url,range1);importrange(url,range2);importrange(url,range3)}
The result will look like this:

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