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Archive Your XLS File in 7Z Format
Learn how to convert and archive XLS files into high-compression 7Z archives for secure storage and efficient transfer, preserving legacy spreadsheet data with advanced compression and encryption.
Quick Access To 3 XLS File Conversion Pairs
What Is This Tool?
This tool allows you to convert XLS files, a legacy Excel spreadsheet format, into 7Z archive files. By compressing XLS documents into 7Z format, you can reduce storage space and enable secure, encrypted backups or easy transfer of legacy spreadsheet collections.
How to Use This Tool?
- Upload your XLS spreadsheet files to the tool interface
- Choose 7Z as the output archive format
- Optionally enable encryption and set a password for secure backups
- Start the conversion process to generate a compressed 7Z archive
- Download the resulting archive for storage, transfer, or archival
Key Features
- Compress one or multiple XLS files into a single highly compressed 7Z archive
- Supports AES-256 encryption for secure file protection within the archive
- Create multi-volume or split 7Z archives to handle large collections or size-limited transfers
- Preserve original XLS legacy spreadsheets with their formulas, charts, and VBA macros inside the archive
Examples
- Compress a folder of monthly financial XLS workbooks into a single encrypted 7Z file to reduce transfer size securely
- Archive legacy BIFF spreadsheets with VBA macros into split 7Z volumes for long-term storage and easy retrieval
- Create a compressed 7Z backup of historical Excel reports while maintaining the original directory structure
Common Use Cases
- Distributing multiple legacy XLS files as a single, smaller download package preserving spreadsheet compatibility
- Creating encrypted archives of sensitive or VBA-enabled XLS spreadsheets for offsite backup and compliance
- Archiving large numbers of legacy Excel reports and logs to save disk space with full file integrity
- Preparing multi-volume 7Z archives for moving collections of XLS files across systems with file-size limits
Tips & Best Practices
- Use AES-256 encryption to protect sensitive XLS data when archiving
- Split large archives into volumes to facilitate transfer across devices with size restrictions
- Keep backups of original XLS files as archiving does not change XLS format limitations
- Use compatible third-party tools to open and extract 7Z archives as native support may be unavailable
Limitations
- 7Z archives may require third-party software for extraction on some operating systems
- Solid compression can slow extraction or modification of individual XLS files within the archive
- Not all extractors support newer 7Z features like LZMA2 compression or header encryption
- Compression and decompression might be resource-heavy on low-performance systems
- XLS format has inherent constraints such as row/column limits and security risks from VBA macros
Frequently Asked Questions
- Why should I archive XLS files into 7Z format?
- Archiving XLS files into 7Z reduces their storage size using high compression, enables encrypted backups, and allows organizing multiple files into a single archive for easy transfer.
- Can I secure my XLS archives with a password?
- Yes, 7Z archives support strong AES-256 encryption, which lets you protect your archives with a password to secure sensitive spreadsheet data.
- Will archiving affect the XLS file features like macros or formulas?
- Archiving does not alter the XLS files themselves, so formulas, charts, and VBA macros remain intact within the archived files.
- Do I need special software to open 7Z archives?
- Yes, most systems do not natively support 7Z files, so you will need a compatible third-party tool such as 7-Zip to extract or open these archives.
- Are there any limitations when extracting files from a 7Z archive?
- Because 7Z archives often use solid compression, extracting or modifying individual XLS files can be slower and more resource-demanding compared to non-solid archives.
Key Terminology
- XLS
- A legacy Microsoft Excel binary spreadsheet format used before Office 2007 that stores workbooks with formulas, charts, VBA macros, and binary data.
- 7Z
- An open archive format that compresses multiple files using LZMA/LZMA2 compression, supporting encryption and multi-volume archives.
- AES-256 encryption
- A robust encryption method used in 7Z archives to protect file contents and optionally header data with a 256-bit key.
- Solid compression
- A compression technique in 7Z archives that compresses multiple files together to achieve higher ratios but can slow extraction of single files.