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Managing large Excel files in WPS Office can be challenging due to performance issues if not handled properly. To ensure efficiency and smooth operation, it is essential to follow a set of optimized techniques tailored to WPS Spreadsheets. First, always save your file in the .xlsx format rather than the older .xls format. The newer format uses efficient storage and is far superior at handling large datasets, which lowers disk footprint and accelerates opening.

Additionally, avoid embedding excessive styling such as excessive colors, decorative lines, or conditional formatting rules across full row ranges, as these severely impact formula processing and rendering.

Minimize the use of dynamic functions like NOW, especially in large datasets. These functions refresh on any modification, which can cause long wait times. Instead, opt for static values where possible or use non-volatile alternatives. Similarly, replace complex array expressions with named ranges or summary tables when applicable, as they are better optimized and easier for WPS to manage.

Break large workbooks into smaller, related files. If a single workbook contains independent tables, consider splitting them into separate files and linking them using worksheet connections or WPS’s query integration. This decreases file burden and allows you to open only the necessary sheets when needed. Use external databases such as TXT files and connect to them via WPS’s Get External Data feature instead of copying massive datasets directly into the spreadsheet.

Remove any unused rows and unused columns. Even if they appear empty, they may contain invisible styles that consume memory. Select the largest empty range, right click, and choose Remove to clear entirely them. Also, clear any cell contents that are no longer needed, as formatted blank cells still count toward the file’s complexity.

Enable manual formula updates in WPS Spreadsheets by going to Formulas > Calculation Options > Manual. This stops real-time updates after every edit, which is especially helpful when working with thousands of formulas. Trigger calculations manually by pressing Ctrl+Alt+F9 when you need an update. This minor adjustment can drastically improve responsiveness.

Use data filters and pivot tables to analyze data instead of manual searching. Pivot tables summarize large datasets efficiently and allow interactive filtering without altering the original data. They also eliminate reliance on complicated expressions and help ensure consistency. Always keep your raw data organized, properly formatted in a data table, and avoid merging cells, as they interfere with sorting.

Regularly audit your file for invalid connections, redundant entries, or mismatched formats. Use WPS’s Find and Replace tool to locate and correct erroneous entries. Also, validate data using input restrictions to block invalid inputs that could lead to calculation errors.

Backup your files consistently and use version control. WPS offers automatic saving and cloud backup features; make sure they are activated to ensure recovery. Additionally, save incremental versions of your file with timestamps to document updates over time. Avoid sharing large files via email attachments; instead, upload them to file-sharing platforms and share access links to improve collaboration.

Finally, keep your WPS Office software updated. Newer versions often include optimizations, error corrections, and efficient resource allocation for large files. Running outdated software can lead to unnecessary crashes. By following these practices strictly, you can maintain optimal performance, minimize mistakes, and ensure that your large Excel files remain stable within WPS Office.