Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

Get Fabric Certified for FREE during Fabric Data Days. Don't miss your chance! Learn more

Reply
Ganchut
New Member

Power BI Rest API - Upload Excel file

Hello. I am new to Power BI and I am trying to publish an Excel file through: https://docs.microsoft.com/en-us/rest/api/power-bi/imports/post-import.

 

I have created a powershell and I have no problems publishing PBI or RDL, but when I try to publish an Excel file it always returns a 400 error. Could you help me? Thank you very much and greetings.

5 REPLIES 5
Ganchut
New Member

Hi @Anonymous 

 

Effectively I am using the credentials of type "service principal". As I mentioned, I only have problems with Excel files.

These are XLSX, but they do not contain a table with data, but rather a report made with Excel with its connections to SSAS.

From the PowerBI portal, I can import the file without any problem, but when I try to import it through the API, it always returns a 400 error.

 

 

Thank you very much for your help.

Anonymous
Not applicable

Hi @Ganchut,

What version of the excel file are you tested?  According to the document, the current it only supports xlsx files.

In addition, What type of credentials are you using in these scripts? If you mean 'service principal', power bi has some limitations of this type of credentials usage.

 

Imports - Post Import - REST API (Power BI Power BI REST APIs) | Microsoft Docs

Regards,

Xiaoxin Sheng

Hi @v-shex-msft 

 

Effectively I am using the credentials of type "service principal". As I mentioned, I only have problems with Excel files.

These are XLSX, but they do not contain a table with data, but rather a report made with Excel with its connections to SSAS.

From the PowerBI portal, I can import the file without any problem, but when I try to import it through the API, it always returns a 400 error.

 

 

Thank you very much for your help.

Anonymous
Not applicable

Hi @Ganchut,

Have you try to use the other methods to invoke the rest API? If these methods worked, they mean contain limitations to using 'service principal' credentials to invoke that API.

Regards,

Xiaoxin Sheng

Hello @Anonymous .

 

In the tests I have done I have not had problems publishing, updating, moving or deleting RDL or PBIX, I have only been unable to publish XLSX.

Helpful resources

Announcements
Fabric Data Days Carousel

Fabric Data Days

Advance your Data & AI career with 50 days of live learning, contests, hands-on challenges, study groups & certifications and more!

October Power BI Update Carousel

Power BI Monthly Update - October 2025

Check out the October 2025 Power BI update to learn about new features.

FabCon Atlanta 2026 carousel

FabCon Atlanta 2026

Join us at FabCon Atlanta, March 16-20, for the ultimate Fabric, Power BI, AI and SQL community-led event. Save $200 with code FABCOMM.