Detect a file type online from an unknown document

CheckFileType Online - 100% Free & Secure

Determine any file type, file extension, and MIME type based on the file contents


Latest file types detectedFree API access

Get file type information based on the file contents
microsoft.reportviewer.common version 9.0.0.0 download

Microsoft.reportviewer.common Version 9.0.0.0 Download [better] Jun 2026

If you have installed the runtime but still see "Assembly Not Found" errors, try these community-proven steps: Microsoft Report Viewer 2015 Runtime

Microsoft has not issued security patches for ReportViewer 9.0.0.0 since April 2016. If you run this version in a production environment: microsoft.reportviewer.common version 9.0.0.0 download