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Druva Documentation

How to exclude file extensions from SharePoint backup

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As an administrator, you can decide and exclude certain files from SharePoint backup using the inSync Management Console.

inSync excludes the files based on its extensions.

Exclude SharePoint files from backup 

  1. On the inSync Management Console menu bar, click Data Sources > Microsoft 365.
  2. Click SharePoint. A page with the discovered SharePoint sites appears.
  3. Click on the SharePoint site for which you wish to exclude files for backup.
  4. On the SharePoint Site Settings, click Edit.
  5. On the Backup & Retention > Settings area, two options are displayed -  Use Default and Custom. The Use Default option when selected inherits settings from the Auto Configuration, where you can add the exclusion for files as well.
  6. Select Custom and provide the appropriate information for each field.
  7. In the File Types text box, add the file extensions which you wish to exclude for SharePoint backup.


The following table lists the file extensions that you can use for excluding defined file types.

File types

File extensions

Office files

*.maf;*.oth;*.pptm;*.ott;*.ots;*.otp;*.pptx;*.xltm;*.mar;*.maq;*.oti;*.otf;*.otg;*.otc;*.ppt;*.accdr;*.accdt;*.xlsm;*.xls;*.txt;*.xts;*.xlsx;*.accde;*.mam;*.odm;*.odi;*.odf;*.odg;*.odb;*.odc;*.adp;*.odt;*.ods;*.odp;*.doc;*.docm;*.mdt;*.mdw;*.adn;*.accdb;*.docx;*.mat;*.mde;*.mdf;*.mda;*.mdb;*.ppl;*.dot;*.dotx;*.dotm;*.xlt;*.xltx;*.pot;*.potx;*.potm;*.one;*.xsn;*.mpt;*.pub;*.vsd;*.vss;*.vst;*.vsw;*.vsdx;*.vsdm;*.vssx;*.vssm;*.vstx;*.vstm;*.vsl;*.vdx;*.vtx;*.vsx; *.xps;*.rtf;*.thmx;*.ppsm;*.ppam;*.oft;*.msg;*.dif;*.slk;*.onetoc;*.onetoc2;*.sldx;*.sldm;  

Image files


HTML files


Audio files


PDF files


Video files