# Working Files > Working Files means all work product, digital or otherwise, used or maintained by [organization] related to its operations. **Term:** Working Files **Last updated:** 2026-07-29 ## Definition ## What Working Files Means in a Contract Working Files refers to the raw and interim material produced or held by a party in the course of performing a contract or running its business. This can include drafts, source documents, spreadsheets, project notes, design files, correspondence, and any other digital or physical work product that supports the finished deliverable but is not necessarily the final output itself. The term is used to distinguish background materials from the polished end product that a client or counterparty actually receives. In practice, a contract that references Working Files is trying to answer a specific question: who controls the materials generated behind the scenes, and what happens to them once the engagement ends. This matters because working files often contain sensitive methodologies, pricing models, or personal data that neither party wants left unaddressed. A well drafted clause tells both sides whether these files must be shared, retained, or destroyed. Because the phrase is broad by design, it commonly appears alongside a placeholder identifying the organization responsible for the files, since the obligations attached to Working Files usually run to whichever party created or is holding them at a given time. ## How Working Files Is Defined or Measured Unlike terms with a fixed legal meaning, Working Files is typically defined contractually rather than by statute. The definition is measured by scope (what counts as a working file), format (digital, physical, or both), and function (materials used to produce a deliverable, as opposed to the deliverable itself). Contracts often list examples, such as notes, calculations, drafts, or internal reports, to reduce ambiguity. Some agreements measure Working Files by ownership trigger, meaning the files are treated differently depending on whether they were created independently, jointly, or using the client's proprietary information. Others measure the term by retention period, specifying how long the files must be kept after project completion, which is particularly relevant in regulated sectors like