- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Uploading files with .xlsb extension is not allowed - September 2021
Hello All, @Petebro,
Today one of my users informed me that she can't upload .xlsb file on our Report Server. She uploads this report every week, so I can see that all previous versions have .xlsb extension. We upgraded to September 2021 last Sunday so it looks that this is the reason. Can I change it somehow? I tried to change AllowedResourceExtensionsForUpload parameter but without success.
Regards,
Marcin
Solved! Go to Solution.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
This was changed in September release as part of hardening around files being uploaded to Power BI Report Server. I will follow up with PM team to figure out if this will be supported again in the future or continue to be blocked. In the meantime xlsx should work if the workbook is convered. I understand there are reasons for xlsb vs xlsx but this will be a workaround while we discuss the issue.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Just wanted to close the loop on this. We will provide an update to September version of PBIRS to address this. XLS XLSB and CSV have been mistakenly blocked from upload. No news on the date of this patch, but it will be addressed before the January PBI RS update.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hi @Marcin_PL
The latest version of Power BI Report Server - Version: 1.12.7977.29537 (Build 15.0.1107.165), Released: November 9, 2021 - has fixed some issues:
- Fixed issue blocking upload of CSV, XLS, and XLSB files.
- Fixed security issue related to certain PBIX files.
- Fixed issue where usernames with commas displayed oddly in new portal.
- Fixed issue with data parameters not displaying correctly.
- Fixed issue with download button not visible when viewing Excel workbooks.
- Fixed issue where PBIX data sources couldn't be edited if more than one existed.
- Fixed issue where old portal displayed "May 2021" instead of "September 2021".
Please check.
Best Regards,
Icey
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hi @Icey,
Just want to confirm that I've upgraded our RS and everything is fixed in the new release.
Thank you,
Marcin
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Just wanted to close the loop on this. We will provide an update to September version of PBIRS to address this. XLS XLSB and CSV have been mistakenly blocked from upload. No news on the date of this patch, but it will be addressed before the January PBI RS update.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
This was changed in September release as part of hardening around files being uploaded to Power BI Report Server. I will follow up with PM team to figure out if this will be supported again in the future or continue to be blocked. In the meantime xlsx should work if the workbook is convered. I understand there are reasons for xlsb vs xlsx but this will be a workaround while we discuss the issue.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Thanks for your quick response. I've already advised using .xlsx files instead .xlsb and asked if .xlsb is really indispensable for this particular report.
Regards,
Marcin

Helpful resources
Join us at the Microsoft Fabric Community Conference
March 31 - April 2, 2025, in Las Vegas, Nevada. Use code MSCUST for a $150 discount!
Power BI Monthly Update - February 2025
Check out the February 2025 Power BI update to learn about new features.

Subject | Author | Posted | |
---|---|---|---|
11-15-2024 04:53 PM | |||
Anonymous
| 05-22-2019 03:57 PM | ||
05-07-2022 09:41 AM | |||
12-07-2024 05:20 PM | |||
10-15-2024 12:16 PM |
User | Count |
---|---|
10 | |
4 | |
4 | |
2 |
User | Count |
---|---|
11 | |
6 | |
5 | |
4 | |
4 |