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Migration Assessment Scan: Large Excel Files

Learn how to mitigate issues with large Excel files during migration.

Overview

The maximum limit for opening XLSX files in the browser is 10 MB in the target environment. This setting is configurable in the source environment that may result in a change in behavior for your users. If you attempt to open a file larger than 10 MB from a SharePoint site, it prompts you to open the file in the Excel client application.

Data Migration

XLSX files are migrated.

Important

Any site that is configured as "No Access" (locked), in SharePoint will be skipped. To see a list of locked site collections see the Locked Sites scan output.

Preparing for Migration

Notify users of the expected behavior.

Post Migration

Attempting to open an XLSX file larger than 10 MB will prompt you to open the file in the Excel client. You'll be prompted with a dialog.

Scan Result Reports

LargeExcelFiles-detail.csv This scan report contains all the XLSX files that are over 10 MB in size.

Column Description
SiteId
Unique identifier of the impacted site collection.
SiteURL
URL to the impacted site collection.
SiteOwner
Owner of the site collection.
SiteAdmins
List of people listed as site collection administrators.
SiteSizeInMB
Size of the size collection in megabytes [MB]
NumOfWebs
Number of webs that exist in the site collection.
ContentDBName
Name of the content database hosting the site collection.
ContentDBServerName
SQL Server hosting the content database.
ContentDBSizeInMB
Size of the content database hosting the site collection.
LastContentModifiedDate
Date/Time the site collection had content modified.
TotalItemCount
Total number of items found in the site collection.
Hits
Number of requests logged for the site collection. Relies on data from the usage logging service. If the usage logging service is disabled this row shows N/A.
DistinctUsers
Number of distinct users that have accessed the site collection. Relies on data from the usage logging service. If the usage logging service is disabled this row shows N/A.
DaysOfUsageData
Number of days the usage logging service retains data. This provides context for Hits and DistinctUsers. For example, if this is 14 days, the Hits and DistinctUsers data is for the last 14 days.
File
URL to the XLSX file.
FileSizeinMB
Size of the XLSX file in MB.
ScanID
Unique identifier assigned to a specific execution of the SharePoint Migration Assessment Tool.