This article describes How to Sign .xls Online with DigiSigner

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This article describes How to Sign .xls document with Electronic Digital Signature - (Tutorial)

This article describes How to Sign .xls document with Digital Signature - (Tutorial)

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This article describes How to sign .xlb files online

This article describes How to Sign .xlb document with Electronic Digital Signature - (Tutorial)

This article describes How to Sign .xlb document with Digital Signature - (Tutorial)

This article describes How to sign .xlb by digital signature